Home / 8,943.15-12,342.12-5,166.47

Finding the Fourth Proportional to 8,943.15, 12,342.12 and 5,166.47

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Solution

The fourth proportional to 8,943.15, 12,342.12 and 5,166.47 is: 7,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.15 : 12,342.12 = 5,166.47 : x
  2. Step 2: Convert to fraction form
    8,943.15/12,342.12 = 5,166.47/x
  3. Step 3: Cross multiply
    8,943.15x = 12,342.12 × 5,166.47
  4. Step 4: Simplify right side
    8,943.15x = 63,765,204.20
  5. Step 5: Solve for x
    x = 63,765,204.20/8,943.15
  6. Step 6: Final answer
    x = 7,130.06

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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.