Home / 15,638.02-21,577.01-9,261.43

Finding the Fourth Proportional to 15,638.02, 21,577.01 and 9,261.43

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Solution

The fourth proportional to 15,638.02, 21,577.01 and 9,261.43 is: 12,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.02 : 21,577.01 = 9,261.43 : x
  2. Step 2: Convert to fraction form
    15,638.02/21,577.01 = 9,261.43/x
  3. Step 3: Cross multiply
    15,638.02x = 21,577.01 × 9,261.43
  4. Step 4: Simplify right side
    15,638.02x = 199,833,867.47
  5. Step 5: Solve for x
    x = 199,833,867.47/15,638.02
  6. Step 6: Final answer
    x = 12,778.72

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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.