Home / 8,781.09-12,117.75-4,802.18

Finding the Fourth Proportional to 8,781.09, 12,117.75 and 4,802.18

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Solution

The fourth proportional to 8,781.09, 12,117.75 and 4,802.18 is: 6,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.09 : 12,117.75 = 4,802.18 : x
  2. Step 2: Convert to fraction form
    8,781.09/12,117.75 = 4,802.18/x
  3. Step 3: Cross multiply
    8,781.09x = 12,117.75 × 4,802.18
  4. Step 4: Simplify right side
    8,781.09x = 58,191,556.11
  5. Step 5: Solve for x
    x = 58,191,556.11/8,781.09
  6. Step 6: Final answer
    x = 6,626.92

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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.