Home / 10,520.44-15,780.66-4,681.15

Finding the Fourth Proportional to 10,520.44, 15,780.66 and 4,681.15

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Solution

The fourth proportional to 10,520.44, 15,780.66 and 4,681.15 is: 7,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.44 : 15,780.66 = 4,681.15 : x
  2. Step 2: Convert to fraction form
    10,520.44/15,780.66 = 4,681.15/x
  3. Step 3: Cross multiply
    10,520.44x = 15,780.66 × 4,681.15
  4. Step 4: Simplify right side
    10,520.44x = 73,871,636.56
  5. Step 5: Solve for x
    x = 73,871,636.56/10,520.44
  6. Step 6: Final answer
    x = 7,021.73

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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.