Home / 11,378.32-15,693.60-10,103.74

Finding the Fourth Proportional to 11,378.32, 15,693.60 and 10,103.74

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Solution

The fourth proportional to 11,378.32, 15,693.60 and 10,103.74 is: 13,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.32 : 15,693.60 = 10,103.74 : x
  2. Step 2: Convert to fraction form
    11,378.32/15,693.60 = 10,103.74/x
  3. Step 3: Cross multiply
    11,378.32x = 15,693.60 × 10,103.74
  4. Step 4: Simplify right side
    11,378.32x = 158,564,054.06
  5. Step 5: Solve for x
    x = 158,564,054.06/11,378.32
  6. Step 6: Final answer
    x = 13,935.63

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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.