Home / 14,020.11-19,349.85-8,990.01

Finding the Fourth Proportional to 14,020.11, 19,349.85 and 8,990.01

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Solution

The fourth proportional to 14,020.11, 19,349.85 and 8,990.01 is: 12,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.11 : 19,349.85 = 8,990.01 : x
  2. Step 2: Convert to fraction form
    14,020.11/19,349.85 = 8,990.01/x
  3. Step 3: Cross multiply
    14,020.11x = 19,349.85 × 8,990.01
  4. Step 4: Simplify right side
    14,020.11x = 173,955,291.86
  5. Step 5: Solve for x
    x = 173,955,291.86/14,020.11
  6. Step 6: Final answer
    x = 12,407.56

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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.