Home / 8,637.68-11,920.43-4,862.05

Finding the Fourth Proportional to 8,637.68, 11,920.43 and 4,862.05

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Solution

The fourth proportional to 8,637.68, 11,920.43 and 4,862.05 is: 6,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.68 : 11,920.43 = 4,862.05 : x
  2. Step 2: Convert to fraction form
    8,637.68/11,920.43 = 4,862.05/x
  3. Step 3: Cross multiply
    8,637.68x = 11,920.43 × 4,862.05
  4. Step 4: Simplify right side
    8,637.68x = 57,957,709.04
  5. Step 5: Solve for x
    x = 57,957,709.04/8,637.68
  6. Step 6: Final answer
    x = 6,709.87

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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.