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Finding the Fourth Proportional to 8,970.56, 13,452.16 and 5,280.16

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Solution

The fourth proportional to 8,970.56, 13,452.16 and 5,280.16 is: 7,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.56 : 13,452.16 = 5,280.16 : x
  2. Step 2: Convert to fraction form
    8,970.56/13,452.16 = 5,280.16/x
  3. Step 3: Cross multiply
    8,970.56x = 13,452.16 × 5,280.16
  4. Step 4: Simplify right side
    8,970.56x = 71,029,557.15
  5. Step 5: Solve for x
    x = 71,029,557.15/8,970.56
  6. Step 6: Final answer
    x = 7,918.07

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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.