Home / 15,516.39-23,256.36-7,178.79

Finding the Fourth Proportional to 15,516.39, 23,256.36 and 7,178.79

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Solution

The fourth proportional to 15,516.39, 23,256.36 and 7,178.79 is: 10,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.39 : 23,256.36 = 7,178.79 : x
  2. Step 2: Convert to fraction form
    15,516.39/23,256.36 = 7,178.79/x
  3. Step 3: Cross multiply
    15,516.39x = 23,256.36 × 7,178.79
  4. Step 4: Simplify right side
    15,516.39x = 166,952,488.71
  5. Step 5: Solve for x
    x = 166,952,488.71/15,516.39
  6. Step 6: Final answer
    x = 10,759.75

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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.