Home / 14,801.56-20,427.30-8,340.70

Finding the Fourth Proportional to 14,801.56, 20,427.30 and 8,340.70

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Solution

The fourth proportional to 14,801.56, 20,427.30 and 8,340.70 is: 11,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,801.56 : 20,427.30 = 8,340.70 : x
  2. Step 2: Convert to fraction form
    14,801.56/20,427.30 = 8,340.70/x
  3. Step 3: Cross multiply
    14,801.56x = 20,427.30 × 8,340.70
  4. Step 4: Simplify right side
    14,801.56x = 170,377,981.11
  5. Step 5: Solve for x
    x = 170,377,981.11/14,801.56
  6. Step 6: Final answer
    x = 11,510.81

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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.