Home / 11,126.58-15,347.76-6,878.94

Finding the Fourth Proportional to 11,126.58, 15,347.76 and 6,878.94

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Solution

The fourth proportional to 11,126.58, 15,347.76 and 6,878.94 is: 9,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.58 : 15,347.76 = 6,878.94 : x
  2. Step 2: Convert to fraction form
    11,126.58/15,347.76 = 6,878.94/x
  3. Step 3: Cross multiply
    11,126.58x = 15,347.76 × 6,878.94
  4. Step 4: Simplify right side
    11,126.58x = 105,576,275.52
  5. Step 5: Solve for x
    x = 105,576,275.52/11,126.58
  6. Step 6: Final answer
    x = 9,488.66

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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.