Home / 12,638.28-18,959.25-4,848.90

Finding the Fourth Proportional to 12,638.28, 18,959.25 and 4,848.90

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Solution

The fourth proportional to 12,638.28, 18,959.25 and 4,848.90 is: 7,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.28 : 18,959.25 = 4,848.90 : x
  2. Step 2: Convert to fraction form
    12,638.28/18,959.25 = 4,848.90/x
  3. Step 3: Cross multiply
    12,638.28x = 18,959.25 × 4,848.90
  4. Step 4: Simplify right side
    12,638.28x = 91,931,507.33
  5. Step 5: Solve for x
    x = 91,931,507.33/12,638.28
  6. Step 6: Final answer
    x = 7,274.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.