Home / 9,278.30-13,915.02-4,345.40

Finding the Fourth Proportional to 9,278.30, 13,915.02 and 4,345.40

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Solution

The fourth proportional to 9,278.30, 13,915.02 and 4,345.40 is: 6,516.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.30 : 13,915.02 = 4,345.40 : x
  2. Step 2: Convert to fraction form
    9,278.30/13,915.02 = 4,345.40/x
  3. Step 3: Cross multiply
    9,278.30x = 13,915.02 × 4,345.40
  4. Step 4: Simplify right side
    9,278.30x = 60,466,327.91
  5. Step 5: Solve for x
    x = 60,466,327.91/9,278.30
  6. Step 6: Final answer
    x = 6,516.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.