Home / 8,407.16-12,612.36-2,860.28

Finding the Fourth Proportional to 8,407.16, 12,612.36 and 2,860.28

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Solution

The fourth proportional to 8,407.16, 12,612.36 and 2,860.28 is: 4,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.16 : 12,612.36 = 2,860.28 : x
  2. Step 2: Convert to fraction form
    8,407.16/12,612.36 = 2,860.28/x
  3. Step 3: Cross multiply
    8,407.16x = 12,612.36 × 2,860.28
  4. Step 4: Simplify right side
    8,407.16x = 36,074,881.06
  5. Step 5: Solve for x
    x = 36,074,881.06/8,407.16
  6. Step 6: Final answer
    x = 4,290.97

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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.