Home / 10,040.95-13,856.62-5,564.78

Finding the Fourth Proportional to 10,040.95, 13,856.62 and 5,564.78

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Solution

The fourth proportional to 10,040.95, 13,856.62 and 5,564.78 is: 7,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.95 : 13,856.62 = 5,564.78 : x
  2. Step 2: Convert to fraction form
    10,040.95/13,856.62 = 5,564.78/x
  3. Step 3: Cross multiply
    10,040.95x = 13,856.62 × 5,564.78
  4. Step 4: Simplify right side
    10,040.95x = 77,109,062.57
  5. Step 5: Solve for x
    x = 77,109,062.57/10,040.95
  6. Step 6: Final answer
    x = 7,679.46

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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.