Home / 18,423.86-25,424.93-10,870.27

Finding the Fourth Proportional to 18,423.86, 25,424.93 and 10,870.27

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Solution

The fourth proportional to 18,423.86, 25,424.93 and 10,870.27 is: 15,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.86 : 25,424.93 = 10,870.27 : x
  2. Step 2: Convert to fraction form
    18,423.86/25,424.93 = 10,870.27/x
  3. Step 3: Cross multiply
    18,423.86x = 25,424.93 × 10,870.27
  4. Step 4: Simplify right side
    18,423.86x = 276,375,817.44
  5. Step 5: Solve for x
    x = 276,375,817.44/18,423.86
  6. Step 6: Final answer
    x = 15,000.98

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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.