Home / 13,230.74-18,259.28-9,250.40

Finding the Fourth Proportional to 13,230.74, 18,259.28 and 9,250.40

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Solution

The fourth proportional to 13,230.74, 18,259.28 and 9,250.40 is: 12,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.74 : 18,259.28 = 9,250.40 : x
  2. Step 2: Convert to fraction form
    13,230.74/18,259.28 = 9,250.40/x
  3. Step 3: Cross multiply
    13,230.74x = 18,259.28 × 9,250.40
  4. Step 4: Simplify right side
    13,230.74x = 168,905,506.16
  5. Step 5: Solve for x
    x = 168,905,506.16/13,230.74
  6. Step 6: Final answer
    x = 12,766.15

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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.