Home / 13,332.02-18,387.69-12,437.78

Finding the Fourth Proportional to 13,332.02, 18,387.69 and 12,437.78

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Solution

The fourth proportional to 13,332.02, 18,387.69 and 12,437.78 is: 17,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.02 : 18,387.69 = 12,437.78 : x
  2. Step 2: Convert to fraction form
    13,332.02/18,387.69 = 12,437.78/x
  3. Step 3: Cross multiply
    13,332.02x = 18,387.69 × 12,437.78
  4. Step 4: Simplify right side
    13,332.02x = 228,702,042.93
  5. Step 5: Solve for x
    x = 228,702,042.93/13,332.02
  6. Step 6: Final answer
    x = 17,154.34

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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.