Home / 9,397.89-12,966.13-5,418.45

Finding the Fourth Proportional to 9,397.89, 12,966.13 and 5,418.45

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Solution

The fourth proportional to 9,397.89, 12,966.13 and 5,418.45 is: 7,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,397.89 : 12,966.13 = 5,418.45 : x
  2. Step 2: Convert to fraction form
    9,397.89/12,966.13 = 5,418.45/x
  3. Step 3: Cross multiply
    9,397.89x = 12,966.13 × 5,418.45
  4. Step 4: Simplify right side
    9,397.89x = 70,256,327.10
  5. Step 5: Solve for x
    x = 70,256,327.10/9,397.89
  6. Step 6: Final answer
    x = 7,475.76

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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.