Home / 14,695.24-20,279.55-7,980.91

Finding the Fourth Proportional to 14,695.24, 20,279.55 and 7,980.91

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Solution

The fourth proportional to 14,695.24, 20,279.55 and 7,980.91 is: 11,013.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.24 : 20,279.55 = 7,980.91 : x
  2. Step 2: Convert to fraction form
    14,695.24/20,279.55 = 7,980.91/x
  3. Step 3: Cross multiply
    14,695.24x = 20,279.55 × 7,980.91
  4. Step 4: Simplify right side
    14,695.24x = 161,849,289.15
  5. Step 5: Solve for x
    x = 161,849,289.15/14,695.24
  6. Step 6: Final answer
    x = 11,013.72

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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.