Home / 10,123.70-13,971.92-5,931.95

Finding the Fourth Proportional to 10,123.70, 13,971.92 and 5,931.95

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Solution

The fourth proportional to 10,123.70, 13,971.92 and 5,931.95 is: 8,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.70 : 13,971.92 = 5,931.95 : x
  2. Step 2: Convert to fraction form
    10,123.70/13,971.92 = 5,931.95/x
  3. Step 3: Cross multiply
    10,123.70x = 13,971.92 × 5,931.95
  4. Step 4: Simplify right side
    10,123.70x = 82,880,631.32
  5. Step 5: Solve for x
    x = 82,880,631.32/10,123.70
  6. Step 6: Final answer
    x = 8,186.80

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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.