Home / 10,980.89-15,153.66-5,945.17

Finding the Fourth Proportional to 10,980.89, 15,153.66 and 5,945.17

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Solution

The fourth proportional to 10,980.89, 15,153.66 and 5,945.17 is: 8,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.89 : 15,153.66 = 5,945.17 : x
  2. Step 2: Convert to fraction form
    10,980.89/15,153.66 = 5,945.17/x
  3. Step 3: Cross multiply
    10,980.89x = 15,153.66 × 5,945.17
  4. Step 4: Simplify right side
    10,980.89x = 90,091,084.82
  5. Step 5: Solve for x
    x = 90,091,084.82/10,980.89
  6. Step 6: Final answer
    x = 8,204.35

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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.