Home / 10,869.09-16,272.60-7,159.96

Finding the Fourth Proportional to 10,869.09, 16,272.60 and 7,159.96

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Solution

The fourth proportional to 10,869.09, 16,272.60 and 7,159.96 is: 10,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.09 : 16,272.60 = 7,159.96 : x
  2. Step 2: Convert to fraction form
    10,869.09/16,272.60 = 7,159.96/x
  3. Step 3: Cross multiply
    10,869.09x = 16,272.60 × 7,159.96
  4. Step 4: Simplify right side
    10,869.09x = 116,511,165.10
  5. Step 5: Solve for x
    x = 116,511,165.10/10,869.09
  6. Step 6: Final answer
    x = 10,719.50

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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.