Home / 7,155.51-10,731.52-5,591.64

Finding the Fourth Proportional to 7,155.51, 10,731.52 and 5,591.64

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Solution

The fourth proportional to 7,155.51, 10,731.52 and 5,591.64 is: 8,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.51 : 10,731.52 = 5,591.64 : x
  2. Step 2: Convert to fraction form
    7,155.51/10,731.52 = 5,591.64/x
  3. Step 3: Cross multiply
    7,155.51x = 10,731.52 × 5,591.64
  4. Step 4: Simplify right side
    7,155.51x = 60,006,742.27
  5. Step 5: Solve for x
    x = 60,006,742.27/7,155.51
  6. Step 6: Final answer
    x = 8,386.08

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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.