Home / 10,185.29-15,278.40-5,264.54

Finding the Fourth Proportional to 10,185.29, 15,278.40 and 5,264.54

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Solution

The fourth proportional to 10,185.29, 15,278.40 and 5,264.54 is: 7,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.29 : 15,278.40 = 5,264.54 : x
  2. Step 2: Convert to fraction form
    10,185.29/15,278.40 = 5,264.54/x
  3. Step 3: Cross multiply
    10,185.29x = 15,278.40 × 5,264.54
  4. Step 4: Simplify right side
    10,185.29x = 80,433,693.27
  5. Step 5: Solve for x
    x = 80,433,693.27/10,185.29
  6. Step 6: Final answer
    x = 7,897.05

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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.