Home / 10,280.54-15,330.63-10,187.04

Finding the Fourth Proportional to 10,280.54, 15,330.63 and 10,187.04

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Solution

The fourth proportional to 10,280.54, 15,330.63 and 10,187.04 is: 15,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.54 : 15,330.63 = 10,187.04 : x
  2. Step 2: Convert to fraction form
    10,280.54/15,330.63 = 10,187.04/x
  3. Step 3: Cross multiply
    10,280.54x = 15,330.63 × 10,187.04
  4. Step 4: Simplify right side
    10,280.54x = 156,173,690.10
  5. Step 5: Solve for x
    x = 156,173,690.10/10,280.54
  6. Step 6: Final answer
    x = 15,191.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.