Home / 15,253.20-21,050.28-8,539.20

Finding the Fourth Proportional to 15,253.20, 21,050.28 and 8,539.20

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Solution

The fourth proportional to 15,253.20, 21,050.28 and 8,539.20 is: 11,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.20 : 21,050.28 = 8,539.20 : x
  2. Step 2: Convert to fraction form
    15,253.20/21,050.28 = 8,539.20/x
  3. Step 3: Cross multiply
    15,253.20x = 21,050.28 × 8,539.20
  4. Step 4: Simplify right side
    15,253.20x = 179,752,550.98
  5. Step 5: Solve for x
    x = 179,752,550.98/15,253.20
  6. Step 6: Final answer
    x = 11,784.58

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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.