Home / 10,520.27-15,765.37-7,725.01

Finding the Fourth Proportional to 10,520.27, 15,765.37 and 7,725.01

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Solution

The fourth proportional to 10,520.27, 15,765.37 and 7,725.01 is: 11,576.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.27 : 15,765.37 = 7,725.01 : x
  2. Step 2: Convert to fraction form
    10,520.27/15,765.37 = 7,725.01/x
  3. Step 3: Cross multiply
    10,520.27x = 15,765.37 × 7,725.01
  4. Step 4: Simplify right side
    10,520.27x = 121,787,602.28
  5. Step 5: Solve for x
    x = 121,787,602.28/10,520.27
  6. Step 6: Final answer
    x = 11,576.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.