Home / 8,938.02-12,335.03-5,161.88

Finding the Fourth Proportional to 8,938.02, 12,335.03 and 5,161.88

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Solution

The fourth proportional to 8,938.02, 12,335.03 and 5,161.88 is: 7,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.02 : 12,335.03 = 5,161.88 : x
  2. Step 2: Convert to fraction form
    8,938.02/12,335.03 = 5,161.88/x
  3. Step 3: Cross multiply
    8,938.02x = 12,335.03 × 5,161.88
  4. Step 4: Simplify right side
    8,938.02x = 63,671,944.66
  5. Step 5: Solve for x
    x = 63,671,944.66/8,938.02
  6. Step 6: Final answer
    x = 7,123.72

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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.