Home / 10,506.08-15,749.58-5,242.70

Finding the Fourth Proportional to 10,506.08, 15,749.58 and 5,242.70

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Solution

The fourth proportional to 10,506.08, 15,749.58 and 5,242.70 is: 7,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.08 : 15,749.58 = 5,242.70 : x
  2. Step 2: Convert to fraction form
    10,506.08/15,749.58 = 5,242.70/x
  3. Step 3: Cross multiply
    10,506.08x = 15,749.58 × 5,242.70
  4. Step 4: Simplify right side
    10,506.08x = 82,570,323.07
  5. Step 5: Solve for x
    x = 82,570,323.07/10,506.08
  6. Step 6: Final answer
    x = 7,859.29

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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.