Home / 8,781.02-12,117.66-4,802.12

Finding the Fourth Proportional to 8,781.02, 12,117.66 and 4,802.12

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Solution

The fourth proportional to 8,781.02, 12,117.66 and 4,802.12 is: 6,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.02 : 12,117.66 = 4,802.12 : x
  2. Step 2: Convert to fraction form
    8,781.02/12,117.66 = 4,802.12/x
  3. Step 3: Cross multiply
    8,781.02x = 12,117.66 × 4,802.12
  4. Step 4: Simplify right side
    8,781.02x = 58,190,457.44
  5. Step 5: Solve for x
    x = 58,190,457.44/8,781.02
  6. Step 6: Final answer
    x = 6,626.84

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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.