Home / 15,572.44-21,470.64-13,552.84

Finding the Fourth Proportional to 15,572.44, 21,470.64 and 13,552.84

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Solution

The fourth proportional to 15,572.44, 21,470.64 and 13,552.84 is: 18,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.44 : 21,470.64 = 13,552.84 : x
  2. Step 2: Convert to fraction form
    15,572.44/21,470.64 = 13,552.84/x
  3. Step 3: Cross multiply
    15,572.44x = 21,470.64 × 13,552.84
  4. Step 4: Simplify right side
    15,572.44x = 290,988,148.62
  5. Step 5: Solve for x
    x = 290,988,148.62/15,572.44
  6. Step 6: Final answer
    x = 18,686.10

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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.