Home / 8,988.12-12,402.82-5,010.16

Finding the Fourth Proportional to 8,988.12, 12,402.82 and 5,010.16

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Solution

The fourth proportional to 8,988.12, 12,402.82 and 5,010.16 is: 6,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.12 : 12,402.82 = 5,010.16 : x
  2. Step 2: Convert to fraction form
    8,988.12/12,402.82 = 5,010.16/x
  3. Step 3: Cross multiply
    8,988.12x = 12,402.82 × 5,010.16
  4. Step 4: Simplify right side
    8,988.12x = 62,140,112.65
  5. Step 5: Solve for x
    x = 62,140,112.65/8,988.12
  6. Step 6: Final answer
    x = 6,913.58

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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.