Home / 10,332.20-15,536.70-8,642.60

Finding the Fourth Proportional to 10,332.20, 15,536.70 and 8,642.60

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Solution

The fourth proportional to 10,332.20, 15,536.70 and 8,642.60 is: 12,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,332.20 : 15,536.70 = 8,642.60 : x
  2. Step 2: Convert to fraction form
    10,332.20/15,536.70 = 8,642.60/x
  3. Step 3: Cross multiply
    10,332.20x = 15,536.70 × 8,642.60
  4. Step 4: Simplify right side
    10,332.20x = 134,277,483.42
  5. Step 5: Solve for x
    x = 134,277,483.42/10,332.20
  6. Step 6: Final answer
    x = 12,996.02

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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.