Home / 10,315.15-14,235.80-5,839.70

Finding the Fourth Proportional to 10,315.15, 14,235.80 and 5,839.70

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Solution

The fourth proportional to 10,315.15, 14,235.80 and 5,839.70 is: 8,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.15 : 14,235.80 = 5,839.70 : x
  2. Step 2: Convert to fraction form
    10,315.15/14,235.80 = 5,839.70/x
  3. Step 3: Cross multiply
    10,315.15x = 14,235.80 × 5,839.70
  4. Step 4: Simplify right side
    10,315.15x = 83,132,700.88
  5. Step 5: Solve for x
    x = 83,132,700.88/10,315.15
  6. Step 6: Final answer
    x = 8,059.28

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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.