Home / 10,123.77-15,185.75-3,549.95

Finding the Fourth Proportional to 10,123.77, 15,185.75 and 3,549.95

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Solution

The fourth proportional to 10,123.77, 15,185.75 and 3,549.95 is: 5,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.77 : 15,185.75 = 3,549.95 : x
  2. Step 2: Convert to fraction form
    10,123.77/15,185.75 = 3,549.95/x
  3. Step 3: Cross multiply
    10,123.77x = 15,185.75 × 3,549.95
  4. Step 4: Simplify right side
    10,123.77x = 53,908,559.53
  5. Step 5: Solve for x
    x = 53,908,559.53/10,123.77
  6. Step 6: Final answer
    x = 5,324.95

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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.