Home / 12,217.51-18,328.50-5,554.45

Finding the Fourth Proportional to 12,217.51, 18,328.50 and 5,554.45

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Solution

The fourth proportional to 12,217.51, 18,328.50 and 5,554.45 is: 8,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.51 : 18,328.50 = 5,554.45 : x
  2. Step 2: Convert to fraction form
    12,217.51/18,328.50 = 5,554.45/x
  3. Step 3: Cross multiply
    12,217.51x = 18,328.50 × 5,554.45
  4. Step 4: Simplify right side
    12,217.51x = 101,804,723.81
  5. Step 5: Solve for x
    x = 101,804,723.81/12,217.51
  6. Step 6: Final answer
    x = 8,332.69

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.