Home / 10,880.47-15,011.36-6,402.79

Finding the Fourth Proportional to 10,880.47, 15,011.36 and 6,402.79

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Solution

The fourth proportional to 10,880.47, 15,011.36 and 6,402.79 is: 8,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.47 : 15,011.36 = 6,402.79 : x
  2. Step 2: Convert to fraction form
    10,880.47/15,011.36 = 6,402.79/x
  3. Step 3: Cross multiply
    10,880.47x = 15,011.36 × 6,402.79
  4. Step 4: Simplify right side
    10,880.47x = 96,114,553.68
  5. Step 5: Solve for x
    x = 96,114,553.68/10,880.47
  6. Step 6: Final answer
    x = 8,833.68

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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.