Home / 10,953.87-15,117.53-6,707.79

Finding the Fourth Proportional to 10,953.87, 15,117.53 and 6,707.79

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Solution

The fourth proportional to 10,953.87, 15,117.53 and 6,707.79 is: 9,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.87 : 15,117.53 = 6,707.79 : x
  2. Step 2: Convert to fraction form
    10,953.87/15,117.53 = 6,707.79/x
  3. Step 3: Cross multiply
    10,953.87x = 15,117.53 × 6,707.79
  4. Step 4: Simplify right side
    10,953.87x = 101,405,216.56
  5. Step 5: Solve for x
    x = 101,405,216.56/10,953.87
  6. Step 6: Final answer
    x = 9,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.