Home / 15,261.12-21,059.28-8,545.59

Finding the Fourth Proportional to 15,261.12, 21,059.28 and 8,545.59

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Solution

The fourth proportional to 15,261.12, 21,059.28 and 8,545.59 is: 11,792.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.12 : 21,059.28 = 8,545.59 : x
  2. Step 2: Convert to fraction form
    15,261.12/21,059.28 = 8,545.59/x
  3. Step 3: Cross multiply
    15,261.12x = 21,059.28 × 8,545.59
  4. Step 4: Simplify right side
    15,261.12x = 179,963,972.58
  5. Step 5: Solve for x
    x = 179,963,972.58/15,261.12
  6. Step 6: Final answer
    x = 11,792.32

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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.