Home / 10,939.60-16,411.80-4,364.08

Finding the Fourth Proportional to 10,939.60, 16,411.80 and 4,364.08

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Solution

The fourth proportional to 10,939.60, 16,411.80 and 4,364.08 is: 6,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.60 : 16,411.80 = 4,364.08 : x
  2. Step 2: Convert to fraction form
    10,939.60/16,411.80 = 4,364.08/x
  3. Step 3: Cross multiply
    10,939.60x = 16,411.80 × 4,364.08
  4. Step 4: Simplify right side
    10,939.60x = 71,622,408.14
  5. Step 5: Solve for x
    x = 71,622,408.14/10,939.60
  6. Step 6: Final answer
    x = 6,547.08

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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.