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Finding the Fourth Proportional to 8,655.66, 12,910.59 and 7,252.74

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Solution

The fourth proportional to 8,655.66, 12,910.59 and 7,252.74 is: 10,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.66 : 12,910.59 = 7,252.74 : x
  2. Step 2: Convert to fraction form
    8,655.66/12,910.59 = 7,252.74/x
  3. Step 3: Cross multiply
    8,655.66x = 12,910.59 × 7,252.74
  4. Step 4: Simplify right side
    8,655.66x = 93,637,152.52
  5. Step 5: Solve for x
    x = 93,637,152.52/8,655.66
  6. Step 6: Final answer
    x = 10,818.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.