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Finding the Fourth Proportional to 9,370.56, 12,948.51 and 8,915.10

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Solution

The fourth proportional to 9,370.56, 12,948.51 and 8,915.10 is: 12,319.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.56 : 12,948.51 = 8,915.10 : x
  2. Step 2: Convert to fraction form
    9,370.56/12,948.51 = 8,915.10/x
  3. Step 3: Cross multiply
    9,370.56x = 12,948.51 × 8,915.10
  4. Step 4: Simplify right side
    9,370.56x = 115,437,261.50
  5. Step 5: Solve for x
    x = 115,437,261.50/9,370.56
  6. Step 6: Final answer
    x = 12,319.14

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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.