Home / 10,347.07-15,525.15-3,421.57

Finding the Fourth Proportional to 10,347.07, 15,525.15 and 3,421.57

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Solution

The fourth proportional to 10,347.07, 15,525.15 and 3,421.57 is: 5,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.07 : 15,525.15 = 3,421.57 : x
  2. Step 2: Convert to fraction form
    10,347.07/15,525.15 = 3,421.57/x
  3. Step 3: Cross multiply
    10,347.07x = 15,525.15 × 3,421.57
  4. Step 4: Simplify right side
    10,347.07x = 53,120,309.86
  5. Step 5: Solve for x
    x = 53,120,309.86/10,347.07
  6. Step 6: Final answer
    x = 5,133.85

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1.5x scale

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.