Home / 10,615.52-15,921.21-10,088.68

Finding the Fourth Proportional to 10,615.52, 15,921.21 and 10,088.68

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Solution

The fourth proportional to 10,615.52, 15,921.21 and 10,088.68 is: 15,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.52 : 15,921.21 = 10,088.68 : x
  2. Step 2: Convert to fraction form
    10,615.52/15,921.21 = 10,088.68/x
  3. Step 3: Cross multiply
    10,615.52x = 15,921.21 × 10,088.68
  4. Step 4: Simplify right side
    10,615.52x = 160,623,992.90
  5. Step 5: Solve for x
    x = 160,623,992.90/10,615.52
  6. Step 6: Final answer
    x = 15,131.05

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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.