Home / 15,223.32-21,007.74-8,508.96

Finding the Fourth Proportional to 15,223.32, 21,007.74 and 8,508.96

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Solution

The fourth proportional to 15,223.32, 21,007.74 and 8,508.96 is: 11,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.32 : 21,007.74 = 8,508.96 : x
  2. Step 2: Convert to fraction form
    15,223.32/21,007.74 = 8,508.96/x
  3. Step 3: Cross multiply
    15,223.32x = 21,007.74 × 8,508.96
  4. Step 4: Simplify right side
    15,223.32x = 178,754,019.35
  5. Step 5: Solve for x
    x = 178,754,019.35/15,223.32
  6. Step 6: Final answer
    x = 11,742.12

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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.