Home / 13,387.75-18,452.02-8,903.48

Finding the Fourth Proportional to 13,387.75, 18,452.02 and 8,903.48

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Solution

The fourth proportional to 13,387.75, 18,452.02 and 8,903.48 is: 12,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.75 : 18,452.02 = 8,903.48 : x
  2. Step 2: Convert to fraction form
    13,387.75/18,452.02 = 8,903.48/x
  3. Step 3: Cross multiply
    13,387.75x = 18,452.02 × 8,903.48
  4. Step 4: Simplify right side
    13,387.75x = 164,287,191.03
  5. Step 5: Solve for x
    x = 164,287,191.03/13,387.75
  6. Step 6: Final answer
    x = 12,271.46

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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.