Home / 15,554.32-21,464.96-8,480.76

Finding the Fourth Proportional to 15,554.32, 21,464.96 and 8,480.76

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Solution

The fourth proportional to 15,554.32, 21,464.96 and 8,480.76 is: 11,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.32 : 21,464.96 = 8,480.76 : x
  2. Step 2: Convert to fraction form
    15,554.32/21,464.96 = 8,480.76/x
  3. Step 3: Cross multiply
    15,554.32x = 21,464.96 × 8,480.76
  4. Step 4: Simplify right side
    15,554.32x = 182,039,174.17
  5. Step 5: Solve for x
    x = 182,039,174.17/15,554.32
  6. Step 6: Final answer
    x = 11,703.45

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Half scale
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Double scale
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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.