Home / 9,877.24-13,629.10-6,340.92

Finding the Fourth Proportional to 9,877.24, 13,629.10 and 6,340.92

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Solution

The fourth proportional to 9,877.24, 13,629.10 and 6,340.92 is: 8,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.24 : 13,629.10 = 6,340.92 : x
  2. Step 2: Convert to fraction form
    9,877.24/13,629.10 = 6,340.92/x
  3. Step 3: Cross multiply
    9,877.24x = 13,629.10 × 6,340.92
  4. Step 4: Simplify right side
    9,877.24x = 86,421,032.77
  5. Step 5: Solve for x
    x = 86,421,032.77/9,877.24
  6. Step 6: Final answer
    x = 8,749.51

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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.