Home / 15,104.32-20,842.56-9,136.96

Finding the Fourth Proportional to 15,104.32, 20,842.56 and 9,136.96

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Solution

The fourth proportional to 15,104.32, 20,842.56 and 9,136.96 is: 12,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.32 : 20,842.56 = 9,136.96 : x
  2. Step 2: Convert to fraction form
    15,104.32/20,842.56 = 9,136.96/x
  3. Step 3: Cross multiply
    15,104.32x = 20,842.56 × 9,136.96
  4. Step 4: Simplify right side
    15,104.32x = 190,437,637.02
  5. Step 5: Solve for x
    x = 190,437,637.02/15,104.32
  6. Step 6: Final answer
    x = 12,608.16

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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.