Home / 15,349.90-21,182.65-8,635.53

Finding the Fourth Proportional to 15,349.90, 21,182.65 and 8,635.53

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Solution

The fourth proportional to 15,349.90, 21,182.65 and 8,635.53 is: 11,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.90 : 21,182.65 = 8,635.53 : x
  2. Step 2: Convert to fraction form
    15,349.90/21,182.65 = 8,635.53/x
  3. Step 3: Cross multiply
    15,349.90x = 21,182.65 × 8,635.53
  4. Step 4: Simplify right side
    15,349.90x = 182,923,409.55
  5. Step 5: Solve for x
    x = 182,923,409.55/15,349.90
  6. Step 6: Final answer
    x = 11,916.91

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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.