Home / 7,214.78-9,955.58-4,070.36

Finding the Fourth Proportional to 7,214.78, 9,955.58 and 4,070.36

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Solution

The fourth proportional to 7,214.78, 9,955.58 and 4,070.36 is: 5,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.78 : 9,955.58 = 4,070.36 : x
  2. Step 2: Convert to fraction form
    7,214.78/9,955.58 = 4,070.36/x
  3. Step 3: Cross multiply
    7,214.78x = 9,955.58 × 4,070.36
  4. Step 4: Simplify right side
    7,214.78x = 40,522,794.61
  5. Step 5: Solve for x
    x = 40,522,794.61/7,214.78
  6. Step 6: Final answer
    x = 5,616.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.