Home / 12,837.29-19,254.81-9,105.11

Finding the Fourth Proportional to 12,837.29, 19,254.81 and 9,105.11

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Solution

The fourth proportional to 12,837.29, 19,254.81 and 9,105.11 is: 13,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.29 : 19,254.81 = 9,105.11 : x
  2. Step 2: Convert to fraction form
    12,837.29/19,254.81 = 9,105.11/x
  3. Step 3: Cross multiply
    12,837.29x = 19,254.81 × 9,105.11
  4. Step 4: Simplify right side
    12,837.29x = 175,317,173.15
  5. Step 5: Solve for x
    x = 175,317,173.15/12,837.29
  6. Step 6: Final answer
    x = 13,656.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.