Home / 8,430.16-12,647.16-2,587.60

Finding the Fourth Proportional to 8,430.16, 12,647.16 and 2,587.60

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Solution

The fourth proportional to 8,430.16, 12,647.16 and 2,587.60 is: 3,881.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.16 : 12,647.16 = 2,587.60 : x
  2. Step 2: Convert to fraction form
    8,430.16/12,647.16 = 2,587.60/x
  3. Step 3: Cross multiply
    8,430.16x = 12,647.16 × 2,587.60
  4. Step 4: Simplify right side
    8,430.16x = 32,725,791.22
  5. Step 5: Solve for x
    x = 32,725,791.22/8,430.16
  6. Step 6: Final answer
    x = 3,881.99

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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.