Home / 18,429.61-25,424.86-11,711.64

Finding the Fourth Proportional to 18,429.61, 25,424.86 and 11,711.64

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Solution

The fourth proportional to 18,429.61, 25,424.86 and 11,711.64 is: 16,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.61 : 25,424.86 = 11,711.64 : x
  2. Step 2: Convert to fraction form
    18,429.61/25,424.86 = 11,711.64/x
  3. Step 3: Cross multiply
    18,429.61x = 25,424.86 × 11,711.64
  4. Step 4: Simplify right side
    18,429.61x = 297,766,807.37
  5. Step 5: Solve for x
    x = 297,766,807.37/18,429.61
  6. Step 6: Final answer
    x = 16,156.98

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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.