Home / 10,521.23-15,764.19-7,395.64

Finding the Fourth Proportional to 10,521.23, 15,764.19 and 7,395.64

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Solution

The fourth proportional to 10,521.23, 15,764.19 and 7,395.64 is: 11,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.23 : 15,764.19 = 7,395.64 : x
  2. Step 2: Convert to fraction form
    10,521.23/15,764.19 = 7,395.64/x
  3. Step 3: Cross multiply
    10,521.23x = 15,764.19 × 7,395.64
  4. Step 4: Simplify right side
    10,521.23x = 116,586,206.99
  5. Step 5: Solve for x
    x = 116,586,206.99/10,521.23
  6. Step 6: Final answer
    x = 11,081.05

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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.