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Finding the Fourth Proportional to 12,740.58, 17,583.11 and 7,437.11

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Solution

The fourth proportional to 12,740.58, 17,583.11 and 7,437.11 is: 10,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.58 : 17,583.11 = 7,437.11 : x
  2. Step 2: Convert to fraction form
    12,740.58/17,583.11 = 7,437.11/x
  3. Step 3: Cross multiply
    12,740.58x = 17,583.11 × 7,437.11
  4. Step 4: Simplify right side
    12,740.58x = 130,767,398.11
  5. Step 5: Solve for x
    x = 130,767,398.11/12,740.58
  6. Step 6: Final answer
    x = 10,263.85

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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.