Home / 10,878.10-15,012.07-6,162.35

Finding the Fourth Proportional to 10,878.10, 15,012.07 and 6,162.35

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Solution

The fourth proportional to 10,878.10, 15,012.07 and 6,162.35 is: 8,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.10 : 15,012.07 = 6,162.35 : x
  2. Step 2: Convert to fraction form
    10,878.10/15,012.07 = 6,162.35/x
  3. Step 3: Cross multiply
    10,878.10x = 15,012.07 × 6,162.35
  4. Step 4: Simplify right side
    10,878.10x = 92,509,539.10
  5. Step 5: Solve for x
    x = 92,509,539.10/10,878.10
  6. Step 6: Final answer
    x = 8,504.20

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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.