Home / 15,590.44-21,508.66-9,923.72

Finding the Fourth Proportional to 15,590.44, 21,508.66 and 9,923.72

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Solution

The fourth proportional to 15,590.44, 21,508.66 and 9,923.72 is: 13,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.44 : 21,508.66 = 9,923.72 : x
  2. Step 2: Convert to fraction form
    15,590.44/21,508.66 = 9,923.72/x
  3. Step 3: Cross multiply
    15,590.44x = 21,508.66 × 9,923.72
  4. Step 4: Simplify right side
    15,590.44x = 213,445,919.42
  5. Step 5: Solve for x
    x = 213,445,919.42/15,590.44
  6. Step 6: Final answer
    x = 13,690.82

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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.