Home / 7,106.80-9,807.36-4,123.24

Finding the Fourth Proportional to 7,106.80, 9,807.36 and 4,123.24

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Solution

The fourth proportional to 7,106.80, 9,807.36 and 4,123.24 is: 5,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.80 : 9,807.36 = 4,123.24 : x
  2. Step 2: Convert to fraction form
    7,106.80/9,807.36 = 4,123.24/x
  3. Step 3: Cross multiply
    7,106.80x = 9,807.36 × 4,123.24
  4. Step 4: Simplify right side
    7,106.80x = 40,438,099.05
  5. Step 5: Solve for x
    x = 40,438,099.05/7,106.80
  6. Step 6: Final answer
    x = 5,690.06

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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.