Home / 12,543.52-18,810.96-4,754.56

Finding the Fourth Proportional to 12,543.52, 18,810.96 and 4,754.56

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Solution

The fourth proportional to 12,543.52, 18,810.96 and 4,754.56 is: 7,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.52 : 18,810.96 = 4,754.56 : x
  2. Step 2: Convert to fraction form
    12,543.52/18,810.96 = 4,754.56/x
  3. Step 3: Cross multiply
    12,543.52x = 18,810.96 × 4,754.56
  4. Step 4: Simplify right side
    12,543.52x = 89,437,837.98
  5. Step 5: Solve for x
    x = 89,437,837.98/12,543.52
  6. Step 6: Final answer
    x = 7,130.20

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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.