Home / 10,926.80-15,078.84-6,210.77

Finding the Fourth Proportional to 10,926.80, 15,078.84 and 6,210.77

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Solution

The fourth proportional to 10,926.80, 15,078.84 and 6,210.77 is: 8,570.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.80 : 15,078.84 = 6,210.77 : x
  2. Step 2: Convert to fraction form
    10,926.80/15,078.84 = 6,210.77/x
  3. Step 3: Cross multiply
    10,926.80x = 15,078.84 × 6,210.77
  4. Step 4: Simplify right side
    10,926.80x = 93,651,207.11
  5. Step 5: Solve for x
    x = 93,651,207.11/10,926.80
  6. Step 6: Final answer
    x = 8,570.78

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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.