Home / 7,019.60-10,520.55-6,140.00

Finding the Fourth Proportional to 7,019.60, 10,520.55 and 6,140.00

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Solution

The fourth proportional to 7,019.60, 10,520.55 and 6,140.00 is: 9,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.60 : 10,520.55 = 6,140.00 : x
  2. Step 2: Convert to fraction form
    7,019.60/10,520.55 = 6,140.00/x
  3. Step 3: Cross multiply
    7,019.60x = 10,520.55 × 6,140.00
  4. Step 4: Simplify right side
    7,019.60x = 64,596,203.30
  5. Step 5: Solve for x
    x = 64,596,203.30/7,019.60
  6. Step 6: Final answer
    x = 9,202.27

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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.