Home / 13,244.40-18,281.16-8,530.20

Finding the Fourth Proportional to 13,244.40, 18,281.16 and 8,530.20

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Solution

The fourth proportional to 13,244.40, 18,281.16 and 8,530.20 is: 11,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.40 : 18,281.16 = 8,530.20 : x
  2. Step 2: Convert to fraction form
    13,244.40/18,281.16 = 8,530.20/x
  3. Step 3: Cross multiply
    13,244.40x = 18,281.16 × 8,530.20
  4. Step 4: Simplify right side
    13,244.40x = 155,941,951.03
  5. Step 5: Solve for x
    x = 155,941,951.03/13,244.40
  6. Step 6: Final answer
    x = 11,774.18

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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.