Home / 13,207.29-18,226.02-7,902.10

Finding the Fourth Proportional to 13,207.29, 18,226.02 and 7,902.10

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Solution

The fourth proportional to 13,207.29, 18,226.02 and 7,902.10 is: 10,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.29 : 18,226.02 = 7,902.10 : x
  2. Step 2: Convert to fraction form
    13,207.29/18,226.02 = 7,902.10/x
  3. Step 3: Cross multiply
    13,207.29x = 18,226.02 × 7,902.10
  4. Step 4: Simplify right side
    13,207.29x = 144,023,832.64
  5. Step 5: Solve for x
    x = 144,023,832.64/13,207.29
  6. Step 6: Final answer
    x = 10,904.87

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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.