Home / 15,828.68-23,756.52-8,815.70

Finding the Fourth Proportional to 15,828.68, 23,756.52 and 8,815.70

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Solution

The fourth proportional to 15,828.68, 23,756.52 and 8,815.70 is: 13,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.68 : 23,756.52 = 8,815.70 : x
  2. Step 2: Convert to fraction form
    15,828.68/23,756.52 = 8,815.70/x
  3. Step 3: Cross multiply
    15,828.68x = 23,756.52 × 8,815.70
  4. Step 4: Simplify right side
    15,828.68x = 209,430,353.36
  5. Step 5: Solve for x
    x = 209,430,353.36/15,828.68
  6. Step 6: Final answer
    x = 13,231.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.