Home / 15,392.18-21,238.52-9,102.26

Finding the Fourth Proportional to 15,392.18, 21,238.52 and 9,102.26

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Solution

The fourth proportional to 15,392.18, 21,238.52 and 9,102.26 is: 12,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.18 : 21,238.52 = 9,102.26 : x
  2. Step 2: Convert to fraction form
    15,392.18/21,238.52 = 9,102.26/x
  3. Step 3: Cross multiply
    15,392.18x = 21,238.52 × 9,102.26
  4. Step 4: Simplify right side
    15,392.18x = 193,318,531.06
  5. Step 5: Solve for x
    x = 193,318,531.06/15,392.18
  6. Step 6: Final answer
    x = 12,559.53

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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.