Home / 13,964.22-19,270.49-7,590.78

Finding the Fourth Proportional to 13,964.22, 19,270.49 and 7,590.78

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Solution

The fourth proportional to 13,964.22, 19,270.49 and 7,590.78 is: 10,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.22 : 19,270.49 = 7,590.78 : x
  2. Step 2: Convert to fraction form
    13,964.22/19,270.49 = 7,590.78/x
  3. Step 3: Cross multiply
    13,964.22x = 19,270.49 × 7,590.78
  4. Step 4: Simplify right side
    13,964.22x = 146,278,012.13
  5. Step 5: Solve for x
    x = 146,278,012.13/13,964.22
  6. Step 6: Final answer
    x = 10,475.20

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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.