Home / 10,245.36-15,387.60-5,871.36

Finding the Fourth Proportional to 10,245.36, 15,387.60 and 5,871.36

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Solution

The fourth proportional to 10,245.36, 15,387.60 and 5,871.36 is: 8,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.36 : 15,387.60 = 5,871.36 : x
  2. Step 2: Convert to fraction form
    10,245.36/15,387.60 = 5,871.36/x
  3. Step 3: Cross multiply
    10,245.36x = 15,387.60 × 5,871.36
  4. Step 4: Simplify right side
    10,245.36x = 90,346,139.14
  5. Step 5: Solve for x
    x = 90,346,139.14/10,245.36
  6. Step 6: Final answer
    x = 8,818.25

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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.