Home / 11,547.38-15,936.35-6,511.34

Finding the Fourth Proportional to 11,547.38, 15,936.35 and 6,511.34

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Solution

The fourth proportional to 11,547.38, 15,936.35 and 6,511.34 is: 8,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.38 : 15,936.35 = 6,511.34 : x
  2. Step 2: Convert to fraction form
    11,547.38/15,936.35 = 6,511.34/x
  3. Step 3: Cross multiply
    11,547.38x = 15,936.35 × 6,511.34
  4. Step 4: Simplify right side
    11,547.38x = 103,766,880.97
  5. Step 5: Solve for x
    x = 103,766,880.97/11,547.38
  6. Step 6: Final answer
    x = 8,986.19

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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.