Home / 13,482.27-18,605.97-7,515.20

Finding the Fourth Proportional to 13,482.27, 18,605.97 and 7,515.20

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Solution

The fourth proportional to 13,482.27, 18,605.97 and 7,515.20 is: 10,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.27 : 18,605.97 = 7,515.20 : x
  2. Step 2: Convert to fraction form
    13,482.27/18,605.97 = 7,515.20/x
  3. Step 3: Cross multiply
    13,482.27x = 18,605.97 × 7,515.20
  4. Step 4: Simplify right side
    13,482.27x = 139,827,632.26
  5. Step 5: Solve for x
    x = 139,827,632.26/13,482.27
  6. Step 6: Final answer
    x = 10,371.22

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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.