Home / 13,247.92-18,281.93-7,279.46

Finding the Fourth Proportional to 13,247.92, 18,281.93 and 7,279.46

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Solution

The fourth proportional to 13,247.92, 18,281.93 and 7,279.46 is: 10,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.92 : 18,281.93 = 7,279.46 : x
  2. Step 2: Convert to fraction form
    13,247.92/18,281.93 = 7,279.46/x
  3. Step 3: Cross multiply
    13,247.92x = 18,281.93 × 7,279.46
  4. Step 4: Simplify right side
    13,247.92x = 133,082,594.68
  5. Step 5: Solve for x
    x = 133,082,594.68/13,247.92
  6. Step 6: Final answer
    x = 10,045.55

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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.