Home / 11,070.38-15,277.12-6,878.63

Finding the Fourth Proportional to 11,070.38, 15,277.12 and 6,878.63

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Solution

The fourth proportional to 11,070.38, 15,277.12 and 6,878.63 is: 9,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.38 : 15,277.12 = 6,878.63 : x
  2. Step 2: Convert to fraction form
    11,070.38/15,277.12 = 6,878.63/x
  3. Step 3: Cross multiply
    11,070.38x = 15,277.12 × 6,878.63
  4. Step 4: Simplify right side
    11,070.38x = 105,085,562.36
  5. Step 5: Solve for x
    x = 105,085,562.36/11,070.38
  6. Step 6: Final answer
    x = 9,492.50

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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.