Home / 8,638.08-11,921.51-4,862.16

Finding the Fourth Proportional to 8,638.08, 11,921.51 and 4,862.16

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Solution

The fourth proportional to 8,638.08, 11,921.51 and 4,862.16 is: 6,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.08 : 11,921.51 = 4,862.16 : x
  2. Step 2: Convert to fraction form
    8,638.08/11,921.51 = 4,862.16/x
  3. Step 3: Cross multiply
    8,638.08x = 11,921.51 × 4,862.16
  4. Step 4: Simplify right side
    8,638.08x = 57,964,301.22
  5. Step 5: Solve for x
    x = 57,964,301.22/8,638.08
  6. Step 6: Final answer
    x = 6,710.33

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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.