Home / 14,574.20-21,872.10-5,815.40

Finding the Fourth Proportional to 14,574.20, 21,872.10 and 5,815.40

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Solution

The fourth proportional to 14,574.20, 21,872.10 and 5,815.40 is: 8,727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.20 : 21,872.10 = 5,815.40 : x
  2. Step 2: Convert to fraction form
    14,574.20/21,872.10 = 5,815.40/x
  3. Step 3: Cross multiply
    14,574.20x = 21,872.10 × 5,815.40
  4. Step 4: Simplify right side
    14,574.20x = 127,195,010.34
  5. Step 5: Solve for x
    x = 127,195,010.34/14,574.20
  6. Step 6: Final answer
    x = 8,727.41

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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.