Home / 10,211.95-15,313.96-3,971.13

Finding the Fourth Proportional to 10,211.95, 15,313.96 and 3,971.13

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Solution

The fourth proportional to 10,211.95, 15,313.96 and 3,971.13 is: 5,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.95 : 15,313.96 = 3,971.13 : x
  2. Step 2: Convert to fraction form
    10,211.95/15,313.96 = 3,971.13/x
  3. Step 3: Cross multiply
    10,211.95x = 15,313.96 × 3,971.13
  4. Step 4: Simplify right side
    10,211.95x = 60,813,725.97
  5. Step 5: Solve for x
    x = 60,813,725.97/10,211.95
  6. Step 6: Final answer
    x = 5,955.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.