Home / 8,421.26-12,631.95-3,740.01

Finding the Fourth Proportional to 8,421.26, 12,631.95 and 3,740.01

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Solution

The fourth proportional to 8,421.26, 12,631.95 and 3,740.01 is: 5,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.26 : 12,631.95 = 3,740.01 : x
  2. Step 2: Convert to fraction form
    8,421.26/12,631.95 = 3,740.01/x
  3. Step 3: Cross multiply
    8,421.26x = 12,631.95 × 3,740.01
  4. Step 4: Simplify right side
    8,421.26x = 47,243,619.32
  5. Step 5: Solve for x
    x = 47,243,619.32/8,421.26
  6. Step 6: Final answer
    x = 5,610.04

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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.