Home / 15,148.14-22,720.58-5,287.60

Finding the Fourth Proportional to 15,148.14, 22,720.58 and 5,287.60

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Solution

The fourth proportional to 15,148.14, 22,720.58 and 5,287.60 is: 7,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.14 : 22,720.58 = 5,287.60 : x
  2. Step 2: Convert to fraction form
    15,148.14/22,720.58 = 5,287.60/x
  3. Step 3: Cross multiply
    15,148.14x = 22,720.58 × 5,287.60
  4. Step 4: Simplify right side
    15,148.14x = 120,137,338.81
  5. Step 5: Solve for x
    x = 120,137,338.81/15,148.14
  6. Step 6: Final answer
    x = 7,930.83

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1.5x scale

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.