Home / 15,543.66-21,425.28-10,506.30

Finding the Fourth Proportional to 15,543.66, 21,425.28 and 10,506.30

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Solution

The fourth proportional to 15,543.66, 21,425.28 and 10,506.30 is: 14,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.66 : 21,425.28 = 10,506.30 : x
  2. Step 2: Convert to fraction form
    15,543.66/21,425.28 = 10,506.30/x
  3. Step 3: Cross multiply
    15,543.66x = 21,425.28 × 10,506.30
  4. Step 4: Simplify right side
    15,543.66x = 225,100,419.26
  5. Step 5: Solve for x
    x = 225,100,419.26/15,543.66
  6. Step 6: Final answer
    x = 14,481.82

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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.