Home / 9,315.38-12,851.57-5,334.35

Finding the Fourth Proportional to 9,315.38, 12,851.57 and 5,334.35

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Solution

The fourth proportional to 9,315.38, 12,851.57 and 5,334.35 is: 7,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.38 : 12,851.57 = 5,334.35 : x
  2. Step 2: Convert to fraction form
    9,315.38/12,851.57 = 5,334.35/x
  3. Step 3: Cross multiply
    9,315.38x = 12,851.57 × 5,334.35
  4. Step 4: Simplify right side
    9,315.38x = 68,554,681.50
  5. Step 5: Solve for x
    x = 68,554,681.50/9,315.38
  6. Step 6: Final answer
    x = 7,359.30

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Similar ratio
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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.