Home / 19,158.45-28,764.56-9,805.17

Finding the Fourth Proportional to 19,158.45, 28,764.56 and 9,805.17

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Solution

The fourth proportional to 19,158.45, 28,764.56 and 9,805.17 is: 14,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.45 : 28,764.56 = 9,805.17 : x
  2. Step 2: Convert to fraction form
    19,158.45/28,764.56 = 9,805.17/x
  3. Step 3: Cross multiply
    19,158.45x = 28,764.56 × 9,805.17
  4. Step 4: Simplify right side
    19,158.45x = 282,041,400.78
  5. Step 5: Solve for x
    x = 282,041,400.78/19,158.45
  6. Step 6: Final answer
    x = 14,721.51

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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.