Home / 10,320.80-14,243.28-5,842.88

Finding the Fourth Proportional to 10,320.80, 14,243.28 and 5,842.88

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Solution

The fourth proportional to 10,320.80, 14,243.28 and 5,842.88 is: 8,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.80 : 14,243.28 = 5,842.88 : x
  2. Step 2: Convert to fraction form
    10,320.80/14,243.28 = 5,842.88/x
  3. Step 3: Cross multiply
    10,320.80x = 14,243.28 × 5,842.88
  4. Step 4: Simplify right side
    10,320.80x = 83,221,775.85
  5. Step 5: Solve for x
    x = 83,221,775.85/10,320.80
  6. Step 6: Final answer
    x = 8,063.50

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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.