Home / 10,640.19-15,962.58-5,306.28

Finding the Fourth Proportional to 10,640.19, 15,962.58 and 5,306.28

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Solution

The fourth proportional to 10,640.19, 15,962.58 and 5,306.28 is: 7,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.19 : 15,962.58 = 5,306.28 : x
  2. Step 2: Convert to fraction form
    10,640.19/15,962.58 = 5,306.28/x
  3. Step 3: Cross multiply
    10,640.19x = 15,962.58 × 5,306.28
  4. Step 4: Simplify right side
    10,640.19x = 84,701,919.00
  5. Step 5: Solve for x
    x = 84,701,919.00/10,640.19
  6. Step 6: Final answer
    x = 7,960.56

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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.