Home / 7,123.04-9,829.74-3,936.55

Finding the Fourth Proportional to 7,123.04, 9,829.74 and 3,936.55

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Solution

The fourth proportional to 7,123.04, 9,829.74 and 3,936.55 is: 5,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.04 : 9,829.74 = 3,936.55 : x
  2. Step 2: Convert to fraction form
    7,123.04/9,829.74 = 3,936.55/x
  3. Step 3: Cross multiply
    7,123.04x = 9,829.74 × 3,936.55
  4. Step 4: Simplify right side
    7,123.04x = 38,695,263.00
  5. Step 5: Solve for x
    x = 38,695,263.00/7,123.04
  6. Step 6: Final answer
    x = 5,432.41

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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.