Home / 10,078.58-15,117.84-6,949.32

Finding the Fourth Proportional to 10,078.58, 15,117.84 and 6,949.32

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Solution

The fourth proportional to 10,078.58, 15,117.84 and 6,949.32 is: 10,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.58 : 15,117.84 = 6,949.32 : x
  2. Step 2: Convert to fraction form
    10,078.58/15,117.84 = 6,949.32/x
  3. Step 3: Cross multiply
    10,078.58x = 15,117.84 × 6,949.32
  4. Step 4: Simplify right side
    10,078.58x = 105,058,707.87
  5. Step 5: Solve for x
    x = 105,058,707.87/10,078.58
  6. Step 6: Final answer
    x = 10,423.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.