Home / 10,555.80-15,806.91-6,336.42

Finding the Fourth Proportional to 10,555.80, 15,806.91 and 6,336.42

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Solution

The fourth proportional to 10,555.80, 15,806.91 and 6,336.42 is: 9,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.80 : 15,806.91 = 6,336.42 : x
  2. Step 2: Convert to fraction form
    10,555.80/15,806.91 = 6,336.42/x
  3. Step 3: Cross multiply
    10,555.80x = 15,806.91 × 6,336.42
  4. Step 4: Simplify right side
    10,555.80x = 100,159,256.18
  5. Step 5: Solve for x
    x = 100,159,256.18/10,555.80
  6. Step 6: Final answer
    x = 9,488.56

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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.