Home / 15,393.90-21,244.78-8,590.06

Finding the Fourth Proportional to 15,393.90, 21,244.78 and 8,590.06

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Solution

The fourth proportional to 15,393.90, 21,244.78 and 8,590.06 is: 11,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393.90 : 21,244.78 = 8,590.06 : x
  2. Step 2: Convert to fraction form
    15,393.90/21,244.78 = 8,590.06/x
  3. Step 3: Cross multiply
    15,393.90x = 21,244.78 × 8,590.06
  4. Step 4: Simplify right side
    15,393.90x = 182,493,828.52
  5. Step 5: Solve for x
    x = 182,493,828.52/15,393.90
  6. Step 6: Final answer
    x = 11,854.95

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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.