Home / 10,099.80-15,152.13-3,174.30

Finding the Fourth Proportional to 10,099.80, 15,152.13 and 3,174.30

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Solution

The fourth proportional to 10,099.80, 15,152.13 and 3,174.30 is: 4,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.80 : 15,152.13 = 3,174.30 : x
  2. Step 2: Convert to fraction form
    10,099.80/15,152.13 = 3,174.30/x
  3. Step 3: Cross multiply
    10,099.80x = 15,152.13 × 3,174.30
  4. Step 4: Simplify right side
    10,099.80x = 48,097,406.26
  5. Step 5: Solve for x
    x = 48,097,406.26/10,099.80
  6. Step 6: Final answer
    x = 4,762.21

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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.