Home / 11,155.95-15,397.76-6,682.32

Finding the Fourth Proportional to 11,155.95, 15,397.76 and 6,682.32

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Solution

The fourth proportional to 11,155.95, 15,397.76 and 6,682.32 is: 9,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.95 : 15,397.76 = 6,682.32 : x
  2. Step 2: Convert to fraction form
    11,155.95/15,397.76 = 6,682.32/x
  3. Step 3: Cross multiply
    11,155.95x = 15,397.76 × 6,682.32
  4. Step 4: Simplify right side
    11,155.95x = 102,892,776.31
  5. Step 5: Solve for x
    x = 102,892,776.31/11,155.95
  6. Step 6: Final answer
    x = 9,223.13

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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.