Home / 10,190.39-14,064.32-5,715.95

Finding the Fourth Proportional to 10,190.39, 14,064.32 and 5,715.95

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Solution

The fourth proportional to 10,190.39, 14,064.32 and 5,715.95 is: 7,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.39 : 14,064.32 = 5,715.95 : x
  2. Step 2: Convert to fraction form
    10,190.39/14,064.32 = 5,715.95/x
  3. Step 3: Cross multiply
    10,190.39x = 14,064.32 × 5,715.95
  4. Step 4: Simplify right side
    10,190.39x = 80,390,949.90
  5. Step 5: Solve for x
    x = 80,390,949.90/10,190.39
  6. Step 6: Final answer
    x = 7,888.90

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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.