Home / 10,113.82-15,170.72-4,703.65

Finding the Fourth Proportional to 10,113.82, 15,170.72 and 4,703.65

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Solution

The fourth proportional to 10,113.82, 15,170.72 and 4,703.65 is: 7,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.82 : 15,170.72 = 4,703.65 : x
  2. Step 2: Convert to fraction form
    10,113.82/15,170.72 = 4,703.65/x
  3. Step 3: Cross multiply
    10,113.82x = 15,170.72 × 4,703.65
  4. Step 4: Simplify right side
    10,113.82x = 71,357,695.68
  5. Step 5: Solve for x
    x = 71,357,695.68/10,113.82
  6. Step 6: Final answer
    x = 7,055.47

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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.