Home / 10,253.67-15,380.93-5,320.14

Finding the Fourth Proportional to 10,253.67, 15,380.93 and 5,320.14

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Solution

The fourth proportional to 10,253.67, 15,380.93 and 5,320.14 is: 7,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.67 : 15,380.93 = 5,320.14 : x
  2. Step 2: Convert to fraction form
    10,253.67/15,380.93 = 5,320.14/x
  3. Step 3: Cross multiply
    10,253.67x = 15,380.93 × 5,320.14
  4. Step 4: Simplify right side
    10,253.67x = 81,828,700.93
  5. Step 5: Solve for x
    x = 81,828,700.93/10,253.67
  6. Step 6: Final answer
    x = 7,980.43

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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.