Home / 13,378.29-18,462.19-7,410.06

Finding the Fourth Proportional to 13,378.29, 18,462.19 and 7,410.06

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Solution

The fourth proportional to 13,378.29, 18,462.19 and 7,410.06 is: 10,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.29 : 18,462.19 = 7,410.06 : x
  2. Step 2: Convert to fraction form
    13,378.29/18,462.19 = 7,410.06/x
  3. Step 3: Cross multiply
    13,378.29x = 18,462.19 × 7,410.06
  4. Step 4: Simplify right side
    13,378.29x = 136,805,843.32
  5. Step 5: Solve for x
    x = 136,805,843.32/13,378.29
  6. Step 6: Final answer
    x = 10,225.96

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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.