Home / 10,884.56-15,018.18-6,634.40

Finding the Fourth Proportional to 10,884.56, 15,018.18 and 6,634.40

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Solution

The fourth proportional to 10,884.56, 15,018.18 and 6,634.40 is: 9,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.56 : 15,018.18 = 6,634.40 : x
  2. Step 2: Convert to fraction form
    10,884.56/15,018.18 = 6,634.40/x
  3. Step 3: Cross multiply
    10,884.56x = 15,018.18 × 6,634.40
  4. Step 4: Simplify right side
    10,884.56x = 99,636,613.39
  5. Step 5: Solve for x
    x = 99,636,613.39/10,884.56
  6. Step 6: Final answer
    x = 9,153.94

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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.