Home / 7,558.70-10,427.05-5,135.20

Finding the Fourth Proportional to 7,558.70, 10,427.05 and 5,135.20

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Solution

The fourth proportional to 7,558.70, 10,427.05 and 5,135.20 is: 7,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.70 : 10,427.05 = 5,135.20 : x
  2. Step 2: Convert to fraction form
    7,558.70/10,427.05 = 5,135.20/x
  3. Step 3: Cross multiply
    7,558.70x = 10,427.05 × 5,135.20
  4. Step 4: Simplify right side
    7,558.70x = 53,544,938.63
  5. Step 5: Solve for x
    x = 53,544,938.63/7,558.70
  6. Step 6: Final answer
    x = 7,083.88

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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.