Home / 8,938.97-12,332.59-5,580.51

Finding the Fourth Proportional to 8,938.97, 12,332.59 and 5,580.51

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Solution

The fourth proportional to 8,938.97, 12,332.59 and 5,580.51 is: 7,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.97 : 12,332.59 = 5,580.51 : x
  2. Step 2: Convert to fraction form
    8,938.97/12,332.59 = 5,580.51/x
  3. Step 3: Cross multiply
    8,938.97x = 12,332.59 × 5,580.51
  4. Step 4: Simplify right side
    8,938.97x = 68,822,127.87
  5. Step 5: Solve for x
    x = 68,822,127.87/8,938.97
  6. Step 6: Final answer
    x = 7,699.11

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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.