Home / 26,619.74-39,928.02-9,978.37

Finding the Fourth Proportional to 26,619.74, 39,928.02 and 9,978.37

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Solution

The fourth proportional to 26,619.74, 39,928.02 and 9,978.37 is: 14,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,619.74 : 39,928.02 = 9,978.37 : x
  2. Step 2: Convert to fraction form
    26,619.74/39,928.02 = 9,978.37/x
  3. Step 3: Cross multiply
    26,619.74x = 39,928.02 × 9,978.37
  4. Step 4: Simplify right side
    26,619.74x = 398,416,419.69
  5. Step 5: Solve for x
    x = 398,416,419.69/26,619.74
  6. Step 6: Final answer
    x = 14,966.95

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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.