Home / 10,981.55-15,155.62-6,266.54

Finding the Fourth Proportional to 10,981.55, 15,155.62 and 6,266.54

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Solution

The fourth proportional to 10,981.55, 15,155.62 and 6,266.54 is: 8,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.55 : 15,155.62 = 6,266.54 : x
  2. Step 2: Convert to fraction form
    10,981.55/15,155.62 = 6,266.54/x
  3. Step 3: Cross multiply
    10,981.55x = 15,155.62 × 6,266.54
  4. Step 4: Simplify right side
    10,981.55x = 94,973,207.51
  5. Step 5: Solve for x
    x = 94,973,207.51/10,981.55
  6. Step 6: Final answer
    x = 8,648.44

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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.