Home / 15,500.34-21,388.53-10,475.49

Finding the Fourth Proportional to 15,500.34, 21,388.53 and 10,475.49

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Solution

The fourth proportional to 15,500.34, 21,388.53 and 10,475.49 is: 14,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500.34 : 21,388.53 = 10,475.49 : x
  2. Step 2: Convert to fraction form
    15,500.34/21,388.53 = 10,475.49/x
  3. Step 3: Cross multiply
    15,500.34x = 21,388.53 × 10,475.49
  4. Step 4: Simplify right side
    15,500.34x = 224,055,332.13
  5. Step 5: Solve for x
    x = 224,055,332.13/15,500.34
  6. Step 6: Final answer
    x = 14,454.87

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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.