Home / 10,439.23-15,661.58-5,174.03

Finding the Fourth Proportional to 10,439.23, 15,661.58 and 5,174.03

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Solution

The fourth proportional to 10,439.23, 15,661.58 and 5,174.03 is: 7,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.23 : 15,661.58 = 5,174.03 : x
  2. Step 2: Convert to fraction form
    10,439.23/15,661.58 = 5,174.03/x
  3. Step 3: Cross multiply
    10,439.23x = 15,661.58 × 5,174.03
  4. Step 4: Simplify right side
    10,439.23x = 81,033,484.77
  5. Step 5: Solve for x
    x = 81,033,484.77/10,439.23
  6. Step 6: Final answer
    x = 7,762.40

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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.