Home / 10,911.60-15,060.36-6,433.71

Finding the Fourth Proportional to 10,911.60, 15,060.36 and 6,433.71

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Solution

The fourth proportional to 10,911.60, 15,060.36 and 6,433.71 is: 8,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.60 : 15,060.36 = 6,433.71 : x
  2. Step 2: Convert to fraction form
    10,911.60/15,060.36 = 6,433.71/x
  3. Step 3: Cross multiply
    10,911.60x = 15,060.36 × 6,433.71
  4. Step 4: Simplify right side
    10,911.60x = 96,893,988.74
  5. Step 5: Solve for x
    x = 96,893,988.74/10,911.60
  6. Step 6: Final answer
    x = 8,879.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.