Home / 7,185.60-9,913.20-5,772.84

Finding the Fourth Proportional to 7,185.60, 9,913.20 and 5,772.84

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Solution

The fourth proportional to 7,185.60, 9,913.20 and 5,772.84 is: 7,964.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.60 : 9,913.20 = 5,772.84 : x
  2. Step 2: Convert to fraction form
    7,185.60/9,913.20 = 5,772.84/x
  3. Step 3: Cross multiply
    7,185.60x = 9,913.20 × 5,772.84
  4. Step 4: Simplify right side
    7,185.60x = 57,227,317.49
  5. Step 5: Solve for x
    x = 57,227,317.49/7,185.60
  6. Step 6: Final answer
    x = 7,964.17

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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.