Home / 14,158.96-21,235.58-13,456.40

Finding the Fourth Proportional to 14,158.96, 21,235.58 and 13,456.40

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Solution

The fourth proportional to 14,158.96, 21,235.58 and 13,456.40 is: 20,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.96 : 21,235.58 = 13,456.40 : x
  2. Step 2: Convert to fraction form
    14,158.96/21,235.58 = 13,456.40/x
  3. Step 3: Cross multiply
    14,158.96x = 21,235.58 × 13,456.40
  4. Step 4: Simplify right side
    14,158.96x = 285,754,458.71
  5. Step 5: Solve for x
    x = 285,754,458.71/14,158.96
  6. Step 6: Final answer
    x = 20,181.88

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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.