Home / 15,243.46-21,020.52-9,269.31

Finding the Fourth Proportional to 15,243.46, 21,020.52 and 9,269.31

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Solution

The fourth proportional to 15,243.46, 21,020.52 and 9,269.31 is: 12,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.46 : 21,020.52 = 9,269.31 : x
  2. Step 2: Convert to fraction form
    15,243.46/21,020.52 = 9,269.31/x
  3. Step 3: Cross multiply
    15,243.46x = 21,020.52 × 9,269.31
  4. Step 4: Simplify right side
    15,243.46x = 194,845,716.24
  5. Step 5: Solve for x
    x = 194,845,716.24/15,243.46
  6. Step 6: Final answer
    x = 12,782.25

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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.