Home / 15,979.84-23,980.56-5,591.68

Finding the Fourth Proportional to 15,979.84, 23,980.56 and 5,591.68

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Solution

The fourth proportional to 15,979.84, 23,980.56 and 5,591.68 is: 8,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.84 : 23,980.56 = 5,591.68 : x
  2. Step 2: Convert to fraction form
    15,979.84/23,980.56 = 5,591.68/x
  3. Step 3: Cross multiply
    15,979.84x = 23,980.56 × 5,591.68
  4. Step 4: Simplify right side
    15,979.84x = 134,091,617.74
  5. Step 5: Solve for x
    x = 134,091,617.74/15,979.84
  6. Step 6: Final answer
    x = 8,391.30

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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.