Home / 8,808.69-12,155.97-5,271.90

Finding the Fourth Proportional to 8,808.69, 12,155.97 and 5,271.90

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Solution

The fourth proportional to 8,808.69, 12,155.97 and 5,271.90 is: 7,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.69 : 12,155.97 = 5,271.90 : x
  2. Step 2: Convert to fraction form
    8,808.69/12,155.97 = 5,271.90/x
  3. Step 3: Cross multiply
    8,808.69x = 12,155.97 × 5,271.90
  4. Step 4: Simplify right side
    8,808.69x = 64,085,058.24
  5. Step 5: Solve for x
    x = 64,085,058.24/8,808.69
  6. Step 6: Final answer
    x = 7,275.21

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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.