Home / 15,608.16-21,539.28-8,534.88

Finding the Fourth Proportional to 15,608.16, 21,539.28 and 8,534.88

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Solution

The fourth proportional to 15,608.16, 21,539.28 and 8,534.88 is: 11,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.16 : 21,539.28 = 8,534.88 : x
  2. Step 2: Convert to fraction form
    15,608.16/21,539.28 = 8,534.88/x
  3. Step 3: Cross multiply
    15,608.16x = 21,539.28 × 8,534.88
  4. Step 4: Simplify right side
    15,608.16x = 183,835,170.09
  5. Step 5: Solve for x
    x = 183,835,170.09/15,608.16
  6. Step 6: Final answer
    x = 11,778.14

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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.