Home / 11,547.90-15,935.78-6,512.09

Finding the Fourth Proportional to 11,547.90, 15,935.78 and 6,512.09

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Solution

The fourth proportional to 11,547.90, 15,935.78 and 6,512.09 is: 8,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.90 : 15,935.78 = 6,512.09 : x
  2. Step 2: Convert to fraction form
    11,547.90/15,935.78 = 6,512.09/x
  3. Step 3: Cross multiply
    11,547.90x = 15,935.78 × 6,512.09
  4. Step 4: Simplify right side
    11,547.90x = 103,775,121.34
  5. Step 5: Solve for x
    x = 103,775,121.34/11,547.90
  6. Step 6: Final answer
    x = 8,986.49

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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.