Home / 13,246.90-18,280.23-7,196.88

Finding the Fourth Proportional to 13,246.90, 18,280.23 and 7,196.88

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Solution

The fourth proportional to 13,246.90, 18,280.23 and 7,196.88 is: 9,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.90 : 18,280.23 = 7,196.88 : x
  2. Step 2: Convert to fraction form
    13,246.90/18,280.23 = 7,196.88/x
  3. Step 3: Cross multiply
    13,246.90x = 18,280.23 × 7,196.88
  4. Step 4: Simplify right side
    13,246.90x = 131,560,621.68
  5. Step 5: Solve for x
    x = 131,560,621.68/13,246.90
  6. Step 6: Final answer
    x = 9,931.43

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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.