Home / 8,430.16-12,645.42-2,587.36

Finding the Fourth Proportional to 8,430.16, 12,645.42 and 2,587.36

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Solution

The fourth proportional to 8,430.16, 12,645.42 and 2,587.36 is: 3,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.16 : 12,645.42 = 2,587.36 : x
  2. Step 2: Convert to fraction form
    8,430.16/12,645.42 = 2,587.36/x
  3. Step 3: Cross multiply
    8,430.16x = 12,645.42 × 2,587.36
  4. Step 4: Simplify right side
    8,430.16x = 32,718,253.89
  5. Step 5: Solve for x
    x = 32,718,253.89/8,430.16
  6. Step 6: Final answer
    x = 3,881.10

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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.