Home / 8,712.03-12,023.63-5,175.25

Finding the Fourth Proportional to 8,712.03, 12,023.63 and 5,175.25

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Solution

The fourth proportional to 8,712.03, 12,023.63 and 5,175.25 is: 7,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.03 : 12,023.63 = 5,175.25 : x
  2. Step 2: Convert to fraction form
    8,712.03/12,023.63 = 5,175.25/x
  3. Step 3: Cross multiply
    8,712.03x = 12,023.63 × 5,175.25
  4. Step 4: Simplify right side
    8,712.03x = 62,225,291.16
  5. Step 5: Solve for x
    x = 62,225,291.16/8,712.03
  6. Step 6: Final answer
    x = 7,142.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.