Home / 15,319.72-22,979.82-6,999.40

Finding the Fourth Proportional to 15,319.72, 22,979.82 and 6,999.40

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Solution

The fourth proportional to 15,319.72, 22,979.82 and 6,999.40 is: 10,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.72 : 22,979.82 = 6,999.40 : x
  2. Step 2: Convert to fraction form
    15,319.72/22,979.82 = 6,999.40/x
  3. Step 3: Cross multiply
    15,319.72x = 22,979.82 × 6,999.40
  4. Step 4: Simplify right side
    15,319.72x = 160,844,952.11
  5. Step 5: Solve for x
    x = 160,844,952.11/15,319.72
  6. Step 6: Final answer
    x = 10,499.21

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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.