Home / 11,564.78-15,959.36-6,259.59

Finding the Fourth Proportional to 11,564.78, 15,959.36 and 6,259.59

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Solution

The fourth proportional to 11,564.78, 15,959.36 and 6,259.59 is: 8,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,564.78 : 15,959.36 = 6,259.59 : x
  2. Step 2: Convert to fraction form
    11,564.78/15,959.36 = 6,259.59/x
  3. Step 3: Cross multiply
    11,564.78x = 15,959.36 × 6,259.59
  4. Step 4: Simplify right side
    11,564.78x = 99,899,065.91
  5. Step 5: Solve for x
    x = 99,899,065.91/11,564.78
  6. Step 6: Final answer
    x = 8,638.22

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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.