Home / 7,803.28-11,681.16-5,329.36

Finding the Fourth Proportional to 7,803.28, 11,681.16 and 5,329.36

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Solution

The fourth proportional to 7,803.28, 11,681.16 and 5,329.36 is: 7,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.28 : 11,681.16 = 5,329.36 : x
  2. Step 2: Convert to fraction form
    7,803.28/11,681.16 = 5,329.36/x
  3. Step 3: Cross multiply
    7,803.28x = 11,681.16 × 5,329.36
  4. Step 4: Simplify right side
    7,803.28x = 62,253,106.86
  5. Step 5: Solve for x
    x = 62,253,106.86/7,803.28
  6. Step 6: Final answer
    x = 7,977.81

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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.