Home / 8,781.04-12,117.63-4,802.05

Finding the Fourth Proportional to 8,781.04, 12,117.63 and 4,802.05

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Solution

The fourth proportional to 8,781.04, 12,117.63 and 4,802.05 is: 6,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.04 : 12,117.63 = 4,802.05 : x
  2. Step 2: Convert to fraction form
    8,781.04/12,117.63 = 4,802.05/x
  3. Step 3: Cross multiply
    8,781.04x = 12,117.63 × 4,802.05
  4. Step 4: Simplify right side
    8,781.04x = 58,189,465.14
  5. Step 5: Solve for x
    x = 58,189,465.14/8,781.04
  6. Step 6: Final answer
    x = 6,626.72

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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.