Home / 11,345.28-15,655.26-6,308.70

Finding the Fourth Proportional to 11,345.28, 15,655.26 and 6,308.70

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Solution

The fourth proportional to 11,345.28, 15,655.26 and 6,308.70 is: 8,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.28 : 15,655.26 = 6,308.70 : x
  2. Step 2: Convert to fraction form
    11,345.28/15,655.26 = 6,308.70/x
  3. Step 3: Cross multiply
    11,345.28x = 15,655.26 × 6,308.70
  4. Step 4: Simplify right side
    11,345.28x = 98,764,338.76
  5. Step 5: Solve for x
    x = 98,764,338.76/11,345.28
  6. Step 6: Final answer
    x = 8,705.32

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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.