Home / 7,521.07-10,378.67-4,117.43

Finding the Fourth Proportional to 7,521.07, 10,378.67 and 4,117.43

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Solution

The fourth proportional to 7,521.07, 10,378.67 and 4,117.43 is: 5,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.07 : 10,378.67 = 4,117.43 : x
  2. Step 2: Convert to fraction form
    7,521.07/10,378.67 = 4,117.43/x
  3. Step 3: Cross multiply
    7,521.07x = 10,378.67 × 4,117.43
  4. Step 4: Simplify right side
    7,521.07x = 42,733,396.97
  5. Step 5: Solve for x
    x = 42,733,396.97/7,521.07
  6. Step 6: Final answer
    x = 5,681.82

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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.