Home / 13,199.40-19,801.02-4,432.20

Finding the Fourth Proportional to 13,199.40, 19,801.02 and 4,432.20

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Solution

The fourth proportional to 13,199.40, 19,801.02 and 4,432.20 is: 6,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.40 : 19,801.02 = 4,432.20 : x
  2. Step 2: Convert to fraction form
    13,199.40/19,801.02 = 4,432.20/x
  3. Step 3: Cross multiply
    13,199.40x = 19,801.02 × 4,432.20
  4. Step 4: Simplify right side
    13,199.40x = 87,762,080.84
  5. Step 5: Solve for x
    x = 87,762,080.84/13,199.40
  6. Step 6: Final answer
    x = 6,648.94

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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.