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Finding the Fourth Proportional to 10,877.58, 15,010.98 and 6,401.34

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Solution

The fourth proportional to 10,877.58, 15,010.98 and 6,401.34 is: 8,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.58 : 15,010.98 = 6,401.34 : x
  2. Step 2: Convert to fraction form
    10,877.58/15,010.98 = 6,401.34/x
  3. Step 3: Cross multiply
    10,877.58x = 15,010.98 × 6,401.34
  4. Step 4: Simplify right side
    10,877.58x = 96,090,386.71
  5. Step 5: Solve for x
    x = 96,090,386.71/10,877.58
  6. Step 6: Final answer
    x = 8,833.80

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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.