Home / 18,816.40-25,967.18-10,859.06

Finding the Fourth Proportional to 18,816.40, 25,967.18 and 10,859.06

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Solution

The fourth proportional to 18,816.40, 25,967.18 and 10,859.06 is: 14,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.40 : 25,967.18 = 10,859.06 : x
  2. Step 2: Convert to fraction form
    18,816.40/25,967.18 = 10,859.06/x
  3. Step 3: Cross multiply
    18,816.40x = 25,967.18 × 10,859.06
  4. Step 4: Simplify right side
    18,816.40x = 281,979,257.72
  5. Step 5: Solve for x
    x = 281,979,257.72/18,816.40
  6. Step 6: Final answer
    x = 14,985.82

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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.