Home / 10,249.45-15,382.53-5,320.50

Finding the Fourth Proportional to 10,249.45, 15,382.53 and 5,320.50

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Solution

The fourth proportional to 10,249.45, 15,382.53 and 5,320.50 is: 7,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.45 : 15,382.53 = 5,320.50 : x
  2. Step 2: Convert to fraction form
    10,249.45/15,382.53 = 5,320.50/x
  3. Step 3: Cross multiply
    10,249.45x = 15,382.53 × 5,320.50
  4. Step 4: Simplify right side
    10,249.45x = 81,842,693.18
  5. Step 5: Solve for x
    x = 81,842,693.18/10,249.45
  6. Step 6: Final answer
    x = 7,985.08

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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.