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Finding the Fourth Proportional to 6,686.61, 10,030.91 and 6,276.57

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Solution

The fourth proportional to 6,686.61, 10,030.91 and 6,276.57 is: 9,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.61 : 10,030.91 = 6,276.57 : x
  2. Step 2: Convert to fraction form
    6,686.61/10,030.91 = 6,276.57/x
  3. Step 3: Cross multiply
    6,686.61x = 10,030.91 × 6,276.57
  4. Step 4: Simplify right side
    6,686.61x = 62,959,677.40
  5. Step 5: Solve for x
    x = 62,959,677.40/6,686.61
  6. Step 6: Final answer
    x = 9,415.78

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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.