Home / 18,614.30-25,686.38-10,656.40

Finding the Fourth Proportional to 18,614.30, 25,686.38 and 10,656.40

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Solution

The fourth proportional to 18,614.30, 25,686.38 and 10,656.40 is: 14,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.30 : 25,686.38 = 10,656.40 : x
  2. Step 2: Convert to fraction form
    18,614.30/25,686.38 = 10,656.40/x
  3. Step 3: Cross multiply
    18,614.30x = 25,686.38 × 10,656.40
  4. Step 4: Simplify right side
    18,614.30x = 273,724,339.83
  5. Step 5: Solve for x
    x = 273,724,339.83/18,614.30
  6. Step 6: Final answer
    x = 14,705.06

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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.