Home / 15,494.59-21,343.39-12,502.05

Finding the Fourth Proportional to 15,494.59, 21,343.39 and 12,502.05

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Solution

The fourth proportional to 15,494.59, 21,343.39 and 12,502.05 is: 17,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,494.59 : 21,343.39 = 12,502.05 : x
  2. Step 2: Convert to fraction form
    15,494.59/21,343.39 = 12,502.05/x
  3. Step 3: Cross multiply
    15,494.59x = 21,343.39 × 12,502.05
  4. Step 4: Simplify right side
    15,494.59x = 266,836,128.95
  5. Step 5: Solve for x
    x = 266,836,128.95/15,494.59
  6. Step 6: Final answer
    x = 17,221.24

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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.