Home / 13,944.95-19,243.78-7,657.28

Finding the Fourth Proportional to 13,944.95, 19,243.78 and 7,657.28

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Solution

The fourth proportional to 13,944.95, 19,243.78 and 7,657.28 is: 10,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.95 : 19,243.78 = 7,657.28 : x
  2. Step 2: Convert to fraction form
    13,944.95/19,243.78 = 7,657.28/x
  3. Step 3: Cross multiply
    13,944.95x = 19,243.78 × 7,657.28
  4. Step 4: Simplify right side
    13,944.95x = 147,354,915.50
  5. Step 5: Solve for x
    x = 147,354,915.50/13,944.95
  6. Step 6: Final answer
    x = 10,566.91

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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.