Home / 11,431.60-15,775.56-6,955.27

Finding the Fourth Proportional to 11,431.60, 15,775.56 and 6,955.27

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Solution

The fourth proportional to 11,431.60, 15,775.56 and 6,955.27 is: 9,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.60 : 15,775.56 = 6,955.27 : x
  2. Step 2: Convert to fraction form
    11,431.60/15,775.56 = 6,955.27/x
  3. Step 3: Cross multiply
    11,431.60x = 15,775.56 × 6,955.27
  4. Step 4: Simplify right side
    11,431.60x = 109,723,239.76
  5. Step 5: Solve for x
    x = 109,723,239.76/11,431.60
  6. Step 6: Final answer
    x = 9,598.24

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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.