Home / 7,108.40-10,662.60-5,812.40

Finding the Fourth Proportional to 7,108.40, 10,662.60 and 5,812.40

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Solution

The fourth proportional to 7,108.40, 10,662.60 and 5,812.40 is: 8,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.40 : 10,662.60 = 5,812.40 : x
  2. Step 2: Convert to fraction form
    7,108.40/10,662.60 = 5,812.40/x
  3. Step 3: Cross multiply
    7,108.40x = 10,662.60 × 5,812.40
  4. Step 4: Simplify right side
    7,108.40x = 61,975,296.24
  5. Step 5: Solve for x
    x = 61,975,296.24/7,108.40
  6. Step 6: Final answer
    x = 8,718.60

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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.