Home / 14,581.02-20,121.93-8,207.40

Finding the Fourth Proportional to 14,581.02, 20,121.93 and 8,207.40

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Solution

The fourth proportional to 14,581.02, 20,121.93 and 8,207.40 is: 11,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.02 : 20,121.93 = 8,207.40 : x
  2. Step 2: Convert to fraction form
    14,581.02/20,121.93 = 8,207.40/x
  3. Step 3: Cross multiply
    14,581.02x = 20,121.93 × 8,207.40
  4. Step 4: Simplify right side
    14,581.02x = 165,148,728.28
  5. Step 5: Solve for x
    x = 165,148,728.28/14,581.02
  6. Step 6: Final answer
    x = 11,326.28

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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.