Home / 10,367.15-15,538.58-7,767.05

Finding the Fourth Proportional to 10,367.15, 15,538.58 and 7,767.05

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Solution

The fourth proportional to 10,367.15, 15,538.58 and 7,767.05 is: 11,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.15 : 15,538.58 = 7,767.05 : x
  2. Step 2: Convert to fraction form
    10,367.15/15,538.58 = 7,767.05/x
  3. Step 3: Cross multiply
    10,367.15x = 15,538.58 × 7,767.05
  4. Step 4: Simplify right side
    10,367.15x = 120,688,888.95
  5. Step 5: Solve for x
    x = 120,688,888.95/10,367.15
  6. Step 6: Final answer
    x = 11,641.47

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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.