Home / 15,678.84-23,516.82-5,290.68

Finding the Fourth Proportional to 15,678.84, 23,516.82 and 5,290.68

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Solution

The fourth proportional to 15,678.84, 23,516.82 and 5,290.68 is: 7,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.84 : 23,516.82 = 5,290.68 : x
  2. Step 2: Convert to fraction form
    15,678.84/23,516.82 = 5,290.68/x
  3. Step 3: Cross multiply
    15,678.84x = 23,516.82 × 5,290.68
  4. Step 4: Simplify right side
    15,678.84x = 124,419,969.24
  5. Step 5: Solve for x
    x = 124,419,969.24/15,678.84
  6. Step 6: Final answer
    x = 7,935.53

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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.