Home / 12,547.08-17,305.38-9,188.67

Finding the Fourth Proportional to 12,547.08, 17,305.38 and 9,188.67

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Solution

The fourth proportional to 12,547.08, 17,305.38 and 9,188.67 is: 12,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.08 : 17,305.38 = 9,188.67 : x
  2. Step 2: Convert to fraction form
    12,547.08/17,305.38 = 9,188.67/x
  3. Step 3: Cross multiply
    12,547.08x = 17,305.38 × 9,188.67
  4. Step 4: Simplify right side
    12,547.08x = 159,013,426.04
  5. Step 5: Solve for x
    x = 159,013,426.04/12,547.08
  6. Step 6: Final answer
    x = 12,673.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.