Home / 8,925.12-13,329.08-7,172.79

Finding the Fourth Proportional to 8,925.12, 13,329.08 and 7,172.79

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Solution

The fourth proportional to 8,925.12, 13,329.08 and 7,172.79 is: 10,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.12 : 13,329.08 = 7,172.79 : x
  2. Step 2: Convert to fraction form
    8,925.12/13,329.08 = 7,172.79/x
  3. Step 3: Cross multiply
    8,925.12x = 13,329.08 × 7,172.79
  4. Step 4: Simplify right side
    8,925.12x = 95,606,655.87
  5. Step 5: Solve for x
    x = 95,606,655.87/8,925.12
  6. Step 6: Final answer
    x = 10,712.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.