Home / 8,421.71-11,626.72-5,592.96

Finding the Fourth Proportional to 8,421.71, 11,626.72 and 5,592.96

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Solution

The fourth proportional to 8,421.71, 11,626.72 and 5,592.96 is: 7,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.71 : 11,626.72 = 5,592.96 : x
  2. Step 2: Convert to fraction form
    8,421.71/11,626.72 = 5,592.96/x
  3. Step 3: Cross multiply
    8,421.71x = 11,626.72 × 5,592.96
  4. Step 4: Simplify right side
    8,421.71x = 65,027,765.91
  5. Step 5: Solve for x
    x = 65,027,765.91/8,421.71
  6. Step 6: Final answer
    x = 7,721.45

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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.