Home / 10,417.76-15,645.09-9,987.23

Finding the Fourth Proportional to 10,417.76, 15,645.09 and 9,987.23

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Solution

The fourth proportional to 10,417.76, 15,645.09 and 9,987.23 is: 14,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,417.76 : 15,645.09 = 9,987.23 : x
  2. Step 2: Convert to fraction form
    10,417.76/15,645.09 = 9,987.23/x
  3. Step 3: Cross multiply
    10,417.76x = 15,645.09 × 9,987.23
  4. Step 4: Simplify right side
    10,417.76x = 156,251,112.20
  5. Step 5: Solve for x
    x = 156,251,112.20/10,417.76
  6. Step 6: Final answer
    x = 14,998.53

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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.