Home / 13,298.38-18,350.93-7,329.72

Finding the Fourth Proportional to 13,298.38, 18,350.93 and 7,329.72

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Solution

The fourth proportional to 13,298.38, 18,350.93 and 7,329.72 is: 10,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.38 : 18,350.93 = 7,329.72 : x
  2. Step 2: Convert to fraction form
    13,298.38/18,350.93 = 7,329.72/x
  3. Step 3: Cross multiply
    13,298.38x = 18,350.93 × 7,329.72
  4. Step 4: Simplify right side
    13,298.38x = 134,507,178.64
  5. Step 5: Solve for x
    x = 134,507,178.64/13,298.38
  6. Step 6: Final answer
    x = 10,114.55

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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.