Home / 13,209.79-18,235.33-9,246.46

Finding the Fourth Proportional to 13,209.79, 18,235.33 and 9,246.46

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Solution

The fourth proportional to 13,209.79, 18,235.33 and 9,246.46 is: 12,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.79 : 18,235.33 = 9,246.46 : x
  2. Step 2: Convert to fraction form
    13,209.79/18,235.33 = 9,246.46/x
  3. Step 3: Cross multiply
    13,209.79x = 18,235.33 × 9,246.46
  4. Step 4: Simplify right side
    13,209.79x = 168,612,203.20
  5. Step 5: Solve for x
    x = 168,612,203.20/13,209.79
  6. Step 6: Final answer
    x = 12,764.18

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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.