Home / 13,332.39-18,397.95-7,960.90

Finding the Fourth Proportional to 13,332.39, 18,397.95 and 7,960.90

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Solution

The fourth proportional to 13,332.39, 18,397.95 and 7,960.90 is: 10,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.39 : 18,397.95 = 7,960.90 : x
  2. Step 2: Convert to fraction form
    13,332.39/18,397.95 = 7,960.90/x
  3. Step 3: Cross multiply
    13,332.39x = 18,397.95 × 7,960.90
  4. Step 4: Simplify right side
    13,332.39x = 146,464,194.16
  5. Step 5: Solve for x
    x = 146,464,194.16/13,332.39
  6. Step 6: Final answer
    x = 10,985.59

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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.