Home / 15,238.40-21,030.98-8,524.31

Finding the Fourth Proportional to 15,238.40, 21,030.98 and 8,524.31

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Solution

The fourth proportional to 15,238.40, 21,030.98 and 8,524.31 is: 11,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.40 : 21,030.98 = 8,524.31 : x
  2. Step 2: Convert to fraction form
    15,238.40/21,030.98 = 8,524.31/x
  3. Step 3: Cross multiply
    15,238.40x = 21,030.98 × 8,524.31
  4. Step 4: Simplify right side
    15,238.40x = 179,274,445.35
  5. Step 5: Solve for x
    x = 179,274,445.35/15,238.40
  6. Step 6: Final answer
    x = 11,764.65

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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.