Home / 19,079.36-28,616.16-8,547.20

Finding the Fourth Proportional to 19,079.36, 28,616.16 and 8,547.20

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Solution

The fourth proportional to 19,079.36, 28,616.16 and 8,547.20 is: 12,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.36 : 28,616.16 = 8,547.20 : x
  2. Step 2: Convert to fraction form
    19,079.36/28,616.16 = 8,547.20/x
  3. Step 3: Cross multiply
    19,079.36x = 28,616.16 × 8,547.20
  4. Step 4: Simplify right side
    19,079.36x = 244,588,042.75
  5. Step 5: Solve for x
    x = 244,588,042.75/19,079.36
  6. Step 6: Final answer
    x = 12,819.51

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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.