Home / 10,347.39-15,521.09-3,421.89

Finding the Fourth Proportional to 10,347.39, 15,521.09 and 3,421.89

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Solution

The fourth proportional to 10,347.39, 15,521.09 and 3,421.89 is: 5,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.39 : 15,521.09 = 3,421.89 : x
  2. Step 2: Convert to fraction form
    10,347.39/15,521.09 = 3,421.89/x
  3. Step 3: Cross multiply
    10,347.39x = 15,521.09 × 3,421.89
  4. Step 4: Simplify right side
    10,347.39x = 53,111,445.55
  5. Step 5: Solve for x
    x = 53,111,445.55/10,347.39
  6. Step 6: Final answer
    x = 5,132.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.