Home / 15,314.02-21,135.31-9,344.42

Finding the Fourth Proportional to 15,314.02, 21,135.31 and 9,344.42

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Solution

The fourth proportional to 15,314.02, 21,135.31 and 9,344.42 is: 12,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.02 : 21,135.31 = 9,344.42 : x
  2. Step 2: Convert to fraction form
    15,314.02/21,135.31 = 9,344.42/x
  3. Step 3: Cross multiply
    15,314.02x = 21,135.31 × 9,344.42
  4. Step 4: Simplify right side
    15,314.02x = 197,497,166.75
  5. Step 5: Solve for x
    x = 197,497,166.75/15,314.02
  6. Step 6: Final answer
    x = 12,896.49

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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.