Home / 7,019.72-10,520.74-6,140.13

Finding the Fourth Proportional to 7,019.72, 10,520.74 and 6,140.13

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Solution

The fourth proportional to 7,019.72, 10,520.74 and 6,140.13 is: 9,202.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.72 : 10,520.74 = 6,140.13 : x
  2. Step 2: Convert to fraction form
    7,019.72/10,520.74 = 6,140.13/x
  3. Step 3: Cross multiply
    7,019.72x = 10,520.74 × 6,140.13
  4. Step 4: Simplify right side
    7,019.72x = 64,598,669.64
  5. Step 5: Solve for x
    x = 64,598,669.64/7,019.72
  6. Step 6: Final answer
    x = 9,202.46

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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.