Home / 12,901.07-17,805.02-8,437.77

Finding the Fourth Proportional to 12,901.07, 17,805.02 and 8,437.77

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Solution

The fourth proportional to 12,901.07, 17,805.02 and 8,437.77 is: 11,645.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.07 : 17,805.02 = 8,437.77 : x
  2. Step 2: Convert to fraction form
    12,901.07/17,805.02 = 8,437.77/x
  3. Step 3: Cross multiply
    12,901.07x = 17,805.02 × 8,437.77
  4. Step 4: Simplify right side
    12,901.07x = 150,234,621.42
  5. Step 5: Solve for x
    x = 150,234,621.42/12,901.07
  6. Step 6: Final answer
    x = 11,645.13

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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.