Home / 18,826.58-25,980.88-10,328.72

Finding the Fourth Proportional to 18,826.58, 25,980.88 and 10,328.72

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Solution

The fourth proportional to 18,826.58, 25,980.88 and 10,328.72 is: 14,253.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.58 : 25,980.88 = 10,328.72 : x
  2. Step 2: Convert to fraction form
    18,826.58/25,980.88 = 10,328.72/x
  3. Step 3: Cross multiply
    18,826.58x = 25,980.88 × 10,328.72
  4. Step 4: Simplify right side
    18,826.58x = 268,349,234.87
  5. Step 5: Solve for x
    x = 268,349,234.87/18,826.58
  6. Step 6: Final answer
    x = 14,253.74

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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.