Home / 9,151.28-13,726.56-4,219.28

Finding the Fourth Proportional to 9,151.28, 13,726.56 and 4,219.28

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Solution

The fourth proportional to 9,151.28, 13,726.56 and 4,219.28 is: 6,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.28 : 13,726.56 = 4,219.28 : x
  2. Step 2: Convert to fraction form
    9,151.28/13,726.56 = 4,219.28/x
  3. Step 3: Cross multiply
    9,151.28x = 13,726.56 × 4,219.28
  4. Step 4: Simplify right side
    9,151.28x = 57,916,200.08
  5. Step 5: Solve for x
    x = 57,916,200.08/9,151.28
  6. Step 6: Final answer
    x = 6,328.75

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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.