Home / 10,347.91-15,525.65-6,455.59

Finding the Fourth Proportional to 10,347.91, 15,525.65 and 6,455.59

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Solution

The fourth proportional to 10,347.91, 15,525.65 and 6,455.59 is: 9,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.91 : 15,525.65 = 6,455.59 : x
  2. Step 2: Convert to fraction form
    10,347.91/15,525.65 = 6,455.59/x
  3. Step 3: Cross multiply
    10,347.91x = 15,525.65 × 6,455.59
  4. Step 4: Simplify right side
    10,347.91x = 100,227,198.61
  5. Step 5: Solve for x
    x = 100,227,198.61/10,347.91
  6. Step 6: Final answer
    x = 9,685.74

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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.