Home / 13,491.93-18,619.20-7,523.55

Finding the Fourth Proportional to 13,491.93, 18,619.20 and 7,523.55

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Solution

The fourth proportional to 13,491.93, 18,619.20 and 7,523.55 is: 10,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.93 : 18,619.20 = 7,523.55 : x
  2. Step 2: Convert to fraction form
    13,491.93/18,619.20 = 7,523.55/x
  3. Step 3: Cross multiply
    13,491.93x = 18,619.20 × 7,523.55
  4. Step 4: Simplify right side
    13,491.93x = 140,082,482.16
  5. Step 5: Solve for x
    x = 140,082,482.16/13,491.93
  6. Step 6: Final answer
    x = 10,382.69

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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.