Home / 15,473.28-21,271.04-13,311.96

Finding the Fourth Proportional to 15,473.28, 21,271.04 and 13,311.96

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Solution

The fourth proportional to 15,473.28, 21,271.04 and 13,311.96 is: 18,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.28 : 21,271.04 = 13,311.96 : x
  2. Step 2: Convert to fraction form
    15,473.28/21,271.04 = 13,311.96/x
  3. Step 3: Cross multiply
    15,473.28x = 21,271.04 × 13,311.96
  4. Step 4: Simplify right side
    15,473.28x = 283,159,060.72
  5. Step 5: Solve for x
    x = 283,159,060.72/15,473.28
  6. Step 6: Final answer
    x = 18,299.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.