Home / 10,255.28-14,155.08-7,271.60

Finding the Fourth Proportional to 10,255.28, 14,155.08 and 7,271.60

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Solution

The fourth proportional to 10,255.28, 14,155.08 and 7,271.60 is: 10,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.28 : 14,155.08 = 7,271.60 : x
  2. Step 2: Convert to fraction form
    10,255.28/14,155.08 = 7,271.60/x
  3. Step 3: Cross multiply
    10,255.28x = 14,155.08 × 7,271.60
  4. Step 4: Simplify right side
    10,255.28x = 102,930,079.73
  5. Step 5: Solve for x
    x = 102,930,079.73/10,255.28
  6. Step 6: Final answer
    x = 10,036.79

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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.