Home / 10,306.78-14,223.38-5,591.08

Finding the Fourth Proportional to 10,306.78, 14,223.38 and 5,591.08

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Solution

The fourth proportional to 10,306.78, 14,223.38 and 5,591.08 is: 7,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.78 : 14,223.38 = 5,591.08 : x
  2. Step 2: Convert to fraction form
    10,306.78/14,223.38 = 5,591.08/x
  3. Step 3: Cross multiply
    10,306.78x = 14,223.38 × 5,591.08
  4. Step 4: Simplify right side
    10,306.78x = 79,524,055.45
  5. Step 5: Solve for x
    x = 79,524,055.45/10,306.78
  6. Step 6: Final answer
    x = 7,715.70

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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.