Home / 10,868.48-16,291.92-6,479.36

Finding the Fourth Proportional to 10,868.48, 16,291.92 and 6,479.36

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Solution

The fourth proportional to 10,868.48, 16,291.92 and 6,479.36 is: 9,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.48 : 16,291.92 = 6,479.36 : x
  2. Step 2: Convert to fraction form
    10,868.48/16,291.92 = 6,479.36/x
  3. Step 3: Cross multiply
    10,868.48x = 16,291.92 × 6,479.36
  4. Step 4: Simplify right side
    10,868.48x = 105,561,214.77
  5. Step 5: Solve for x
    x = 105,561,214.77/10,868.48
  6. Step 6: Final answer
    x = 9,712.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.