Home / 8,390.08-11,582.76-5,247.28

Finding the Fourth Proportional to 8,390.08, 11,582.76 and 5,247.28

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Solution

The fourth proportional to 8,390.08, 11,582.76 and 5,247.28 is: 7,244.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.08 : 11,582.76 = 5,247.28 : x
  2. Step 2: Convert to fraction form
    8,390.08/11,582.76 = 5,247.28/x
  3. Step 3: Cross multiply
    8,390.08x = 11,582.76 × 5,247.28
  4. Step 4: Simplify right side
    8,390.08x = 60,777,984.89
  5. Step 5: Solve for x
    x = 60,777,984.89/8,390.08
  6. Step 6: Final answer
    x = 7,244.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.