Home / 10,330.75-15,552.34-9,412.21

Finding the Fourth Proportional to 10,330.75, 15,552.34 and 9,412.21

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Solution

The fourth proportional to 10,330.75, 15,552.34 and 9,412.21 is: 14,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.75 : 15,552.34 = 9,412.21 : x
  2. Step 2: Convert to fraction form
    10,330.75/15,552.34 = 9,412.21/x
  3. Step 3: Cross multiply
    10,330.75x = 15,552.34 × 9,412.21
  4. Step 4: Simplify right side
    10,330.75x = 146,381,890.07
  5. Step 5: Solve for x
    x = 146,381,890.07/10,330.75
  6. Step 6: Final answer
    x = 14,169.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.