Home / 13,720.78-20,569.02-5,925.34

Finding the Fourth Proportional to 13,720.78, 20,569.02 and 5,925.34

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Solution

The fourth proportional to 13,720.78, 20,569.02 and 5,925.34 is: 8,882.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.78 : 20,569.02 = 5,925.34 : x
  2. Step 2: Convert to fraction form
    13,720.78/20,569.02 = 5,925.34/x
  3. Step 3: Cross multiply
    13,720.78x = 20,569.02 × 5,925.34
  4. Step 4: Simplify right side
    13,720.78x = 121,878,436.97
  5. Step 5: Solve for x
    x = 121,878,436.97/13,720.78
  6. Step 6: Final answer
    x = 8,882.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.