Home / 10,878.39-15,011.59-6,162.57

Finding the Fourth Proportional to 10,878.39, 15,011.59 and 6,162.57

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Solution

The fourth proportional to 10,878.39, 15,011.59 and 6,162.57 is: 8,504.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.39 : 15,011.59 = 6,162.57 : x
  2. Step 2: Convert to fraction form
    10,878.39/15,011.59 = 6,162.57/x
  3. Step 3: Cross multiply
    10,878.39x = 15,011.59 × 6,162.57
  4. Step 4: Simplify right side
    10,878.39x = 92,509,974.19
  5. Step 5: Solve for x
    x = 92,509,974.19/10,878.39
  6. Step 6: Final answer
    x = 8,504.01

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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.