Home / 13,349.08-18,422.25-8,865.10

Finding the Fourth Proportional to 13,349.08, 18,422.25 and 8,865.10

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Solution

The fourth proportional to 13,349.08, 18,422.25 and 8,865.10 is: 12,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.08 : 18,422.25 = 8,865.10 : x
  2. Step 2: Convert to fraction form
    13,349.08/18,422.25 = 8,865.10/x
  3. Step 3: Cross multiply
    13,349.08x = 18,422.25 × 8,865.10
  4. Step 4: Simplify right side
    13,349.08x = 163,315,088.48
  5. Step 5: Solve for x
    x = 163,315,088.48/13,349.08
  6. Step 6: Final answer
    x = 12,234.18

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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.