Home / 8,746.50-13,121.07-3,123.74

Finding the Fourth Proportional to 8,746.50, 13,121.07 and 3,123.74

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Solution

The fourth proportional to 8,746.50, 13,121.07 and 3,123.74 is: 4,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.50 : 13,121.07 = 3,123.74 : x
  2. Step 2: Convert to fraction form
    8,746.50/13,121.07 = 3,123.74/x
  3. Step 3: Cross multiply
    8,746.50x = 13,121.07 × 3,123.74
  4. Step 4: Simplify right side
    8,746.50x = 40,986,729.98
  5. Step 5: Solve for x
    x = 40,986,729.98/8,746.50
  6. Step 6: Final answer
    x = 4,686.07

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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.