Home / 14,279.24-19,703.58-7,990.04

Finding the Fourth Proportional to 14,279.24, 19,703.58 and 7,990.04

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Solution

The fourth proportional to 14,279.24, 19,703.58 and 7,990.04 is: 11,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.24 : 19,703.58 = 7,990.04 : x
  2. Step 2: Convert to fraction form
    14,279.24/19,703.58 = 7,990.04/x
  3. Step 3: Cross multiply
    14,279.24x = 19,703.58 × 7,990.04
  4. Step 4: Simplify right side
    14,279.24x = 157,432,392.34
  5. Step 5: Solve for x
    x = 157,432,392.34/14,279.24
  6. Step 6: Final answer
    x = 11,025.26

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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.