Home / 11,378.58-15,702.51-6,343.12

Finding the Fourth Proportional to 11,378.58, 15,702.51 and 6,343.12

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Solution

The fourth proportional to 11,378.58, 15,702.51 and 6,343.12 is: 8,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.58 : 15,702.51 = 6,343.12 : x
  2. Step 2: Convert to fraction form
    11,378.58/15,702.51 = 6,343.12/x
  3. Step 3: Cross multiply
    11,378.58x = 15,702.51 × 6,343.12
  4. Step 4: Simplify right side
    11,378.58x = 99,602,905.23
  5. Step 5: Solve for x
    x = 99,602,905.23/11,378.58
  6. Step 6: Final answer
    x = 8,753.54

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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.