Home / 11,348.40-15,663.36-6,635.40

Finding the Fourth Proportional to 11,348.40, 15,663.36 and 6,635.40

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Solution

The fourth proportional to 11,348.40, 15,663.36 and 6,635.40 is: 9,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.40 : 15,663.36 = 6,635.40 : x
  2. Step 2: Convert to fraction form
    11,348.40/15,663.36 = 6,635.40/x
  3. Step 3: Cross multiply
    11,348.40x = 15,663.36 × 6,635.40
  4. Step 4: Simplify right side
    11,348.40x = 103,932,658.94
  5. Step 5: Solve for x
    x = 103,932,658.94/11,348.40
  6. Step 6: Final answer
    x = 9,158.35

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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.