Home / 10,382.04-15,577.86-5,191.32

Finding the Fourth Proportional to 10,382.04, 15,577.86 and 5,191.32

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Solution

The fourth proportional to 10,382.04, 15,577.86 and 5,191.32 is: 7,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.04 : 15,577.86 = 5,191.32 : x
  2. Step 2: Convert to fraction form
    10,382.04/15,577.86 = 5,191.32/x
  3. Step 3: Cross multiply
    10,382.04x = 15,577.86 × 5,191.32
  4. Step 4: Simplify right side
    10,382.04x = 80,869,656.18
  5. Step 5: Solve for x
    x = 80,869,656.18/10,382.04
  6. Step 6: Final answer
    x = 7,789.38

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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.