Home / 15,280.50-21,082.35-8,565.19

Finding the Fourth Proportional to 15,280.50, 21,082.35 and 8,565.19

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Solution

The fourth proportional to 15,280.50, 21,082.35 and 8,565.19 is: 11,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.50 : 21,082.35 = 8,565.19 : x
  2. Step 2: Convert to fraction form
    15,280.50/21,082.35 = 8,565.19/x
  3. Step 3: Cross multiply
    15,280.50x = 21,082.35 × 8,565.19
  4. Step 4: Simplify right side
    15,280.50x = 180,574,333.40
  5. Step 5: Solve for x
    x = 180,574,333.40/15,280.50
  6. Step 6: Final answer
    x = 11,817.31

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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.