Home / 8,637.71-11,920.11-5,102.69

Finding the Fourth Proportional to 8,637.71, 11,920.11 and 5,102.69

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Solution

The fourth proportional to 8,637.71, 11,920.11 and 5,102.69 is: 7,041.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.71 : 11,920.11 = 5,102.69 : x
  2. Step 2: Convert to fraction form
    8,637.71/11,920.11 = 5,102.69/x
  3. Step 3: Cross multiply
    8,637.71x = 11,920.11 × 5,102.69
  4. Step 4: Simplify right side
    8,637.71x = 60,824,626.10
  5. Step 5: Solve for x
    x = 60,824,626.10/8,637.71
  6. Step 6: Final answer
    x = 7,041.75

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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.