Home / 14,247.72-19,661.22-7,959.60

Finding the Fourth Proportional to 14,247.72, 19,661.22 and 7,959.60

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Solution

The fourth proportional to 14,247.72, 19,661.22 and 7,959.60 is: 10,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.72 : 19,661.22 = 7,959.60 : x
  2. Step 2: Convert to fraction form
    14,247.72/19,661.22 = 7,959.60/x
  3. Step 3: Cross multiply
    14,247.72x = 19,661.22 × 7,959.60
  4. Step 4: Simplify right side
    14,247.72x = 156,495,446.71
  5. Step 5: Solve for x
    x = 156,495,446.71/14,247.72
  6. Step 6: Final answer
    x = 10,983.89

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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.