Home / 10,456.35-15,681.20-3,434.73

Finding the Fourth Proportional to 10,456.35, 15,681.20 and 3,434.73

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Solution

The fourth proportional to 10,456.35, 15,681.20 and 3,434.73 is: 5,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,456.35 : 15,681.20 = 3,434.73 : x
  2. Step 2: Convert to fraction form
    10,456.35/15,681.20 = 3,434.73/x
  3. Step 3: Cross multiply
    10,456.35x = 15,681.20 × 3,434.73
  4. Step 4: Simplify right side
    10,456.35x = 53,860,714.74
  5. Step 5: Solve for x
    x = 53,860,714.74/10,456.35
  6. Step 6: Final answer
    x = 5,151.01

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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.