Home / 8,430.51-12,645.29-2,587.11

Finding the Fourth Proportional to 8,430.51, 12,645.29 and 2,587.11

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Solution

The fourth proportional to 8,430.51, 12,645.29 and 2,587.11 is: 3,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.51 : 12,645.29 = 2,587.11 : x
  2. Step 2: Convert to fraction form
    8,430.51/12,645.29 = 2,587.11/x
  3. Step 3: Cross multiply
    8,430.51x = 12,645.29 × 2,587.11
  4. Step 4: Simplify right side
    8,430.51x = 32,714,743.28
  5. Step 5: Solve for x
    x = 32,714,743.28/8,430.51
  6. Step 6: Final answer
    x = 3,880.52

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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.