Home / 10,371.44-15,521.63-6,421.17

Finding the Fourth Proportional to 10,371.44, 15,521.63 and 6,421.17

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Solution

The fourth proportional to 10,371.44, 15,521.63 and 6,421.17 is: 9,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.44 : 15,521.63 = 6,421.17 : x
  2. Step 2: Convert to fraction form
    10,371.44/15,521.63 = 6,421.17/x
  3. Step 3: Cross multiply
    10,371.44x = 15,521.63 × 6,421.17
  4. Step 4: Simplify right side
    10,371.44x = 99,667,051.01
  5. Step 5: Solve for x
    x = 99,667,051.01/10,371.44
  6. Step 6: Final answer
    x = 9,609.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.