Home / 15,314.98-21,136.96-9,350.11

Finding the Fourth Proportional to 15,314.98, 21,136.96 and 9,350.11

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Solution

The fourth proportional to 15,314.98, 21,136.96 and 9,350.11 is: 12,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.98 : 21,136.96 = 9,350.11 : x
  2. Step 2: Convert to fraction form
    15,314.98/21,136.96 = 9,350.11/x
  3. Step 3: Cross multiply
    15,314.98x = 21,136.96 × 9,350.11
  4. Step 4: Simplify right side
    15,314.98x = 197,632,901.07
  5. Step 5: Solve for x
    x = 197,632,901.07/15,314.98
  6. Step 6: Final answer
    x = 12,904.55

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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.