Home / 10,265.95-15,392.77-4,990.57

Finding the Fourth Proportional to 10,265.95, 15,392.77 and 4,990.57

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Solution

The fourth proportional to 10,265.95, 15,392.77 and 4,990.57 is: 7,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265.95 : 15,392.77 = 4,990.57 : x
  2. Step 2: Convert to fraction form
    10,265.95/15,392.77 = 4,990.57/x
  3. Step 3: Cross multiply
    10,265.95x = 15,392.77 × 4,990.57
  4. Step 4: Simplify right side
    10,265.95x = 76,818,696.18
  5. Step 5: Solve for x
    x = 76,818,696.18/10,265.95
  6. Step 6: Final answer
    x = 7,482.86

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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.