Home / 13,271.57-18,314.30-7,302.68

Finding the Fourth Proportional to 13,271.57, 18,314.30 and 7,302.68

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Solution

The fourth proportional to 13,271.57, 18,314.30 and 7,302.68 is: 10,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.57 : 18,314.30 = 7,302.68 : x
  2. Step 2: Convert to fraction form
    13,271.57/18,314.30 = 7,302.68/x
  3. Step 3: Cross multiply
    13,271.57x = 18,314.30 × 7,302.68
  4. Step 4: Simplify right side
    13,271.57x = 133,743,344.24
  5. Step 5: Solve for x
    x = 133,743,344.24/13,271.57
  6. Step 6: Final answer
    x = 10,077.44

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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.