Home / 15,327.40-21,151.02-8,613.32

Finding the Fourth Proportional to 15,327.40, 21,151.02 and 8,613.32

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Solution

The fourth proportional to 15,327.40, 21,151.02 and 8,613.32 is: 11,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.40 : 21,151.02 = 8,613.32 : x
  2. Step 2: Convert to fraction form
    15,327.40/21,151.02 = 8,613.32/x
  3. Step 3: Cross multiply
    15,327.40x = 21,151.02 × 8,613.32
  4. Step 4: Simplify right side
    15,327.40x = 182,180,503.59
  5. Step 5: Solve for x
    x = 182,180,503.59/15,327.40
  6. Step 6: Final answer
    x = 11,885.94

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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.