Home / 11,898.45-16,419.65-6,862.88

Finding the Fourth Proportional to 11,898.45, 16,419.65 and 6,862.88

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Solution

The fourth proportional to 11,898.45, 16,419.65 and 6,862.88 is: 9,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,898.45 : 16,419.65 = 6,862.88 : x
  2. Step 2: Convert to fraction form
    11,898.45/16,419.65 = 6,862.88/x
  3. Step 3: Cross multiply
    11,898.45x = 16,419.65 × 6,862.88
  4. Step 4: Simplify right side
    11,898.45x = 112,686,094.33
  5. Step 5: Solve for x
    x = 112,686,094.33/11,898.45
  6. Step 6: Final answer
    x = 9,470.65

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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.