Home / 15,678.14-23,519.45-5,148.99

Finding the Fourth Proportional to 15,678.14, 23,519.45 and 5,148.99

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Solution

The fourth proportional to 15,678.14, 23,519.45 and 5,148.99 is: 7,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.14 : 23,519.45 = 5,148.99 : x
  2. Step 2: Convert to fraction form
    15,678.14/23,519.45 = 5,148.99/x
  3. Step 3: Cross multiply
    15,678.14x = 23,519.45 × 5,148.99
  4. Step 4: Simplify right side
    15,678.14x = 121,101,425.73
  5. Step 5: Solve for x
    x = 121,101,425.73/15,678.14
  6. Step 6: Final answer
    x = 7,724.22

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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.