Home / 7,315.16-10,074.66-6,320.12

Finding the Fourth Proportional to 7,315.16, 10,074.66 and 6,320.12

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Solution

The fourth proportional to 7,315.16, 10,074.66 and 6,320.12 is: 8,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.16 : 10,074.66 = 6,320.12 : x
  2. Step 2: Convert to fraction form
    7,315.16/10,074.66 = 6,320.12/x
  3. Step 3: Cross multiply
    7,315.16x = 10,074.66 × 6,320.12
  4. Step 4: Simplify right side
    7,315.16x = 63,673,060.16
  5. Step 5: Solve for x
    x = 63,673,060.16/7,315.16
  6. Step 6: Final answer
    x = 8,704.26

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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.