Home / 8,889.63-12,266.28-5,112.06

Finding the Fourth Proportional to 8,889.63, 12,266.28 and 5,112.06

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Solution

The fourth proportional to 8,889.63, 12,266.28 and 5,112.06 is: 7,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.63 : 12,266.28 = 5,112.06 : x
  2. Step 2: Convert to fraction form
    8,889.63/12,266.28 = 5,112.06/x
  3. Step 3: Cross multiply
    8,889.63x = 12,266.28 × 5,112.06
  4. Step 4: Simplify right side
    8,889.63x = 62,705,959.34
  5. Step 5: Solve for x
    x = 62,705,959.34/8,889.63
  6. Step 6: Final answer
    x = 7,053.83

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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.