Home / 13,366.08-18,444.72-7,397.76

Finding the Fourth Proportional to 13,366.08, 18,444.72 and 7,397.76

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Solution

The fourth proportional to 13,366.08, 18,444.72 and 7,397.76 is: 10,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.08 : 18,444.72 = 7,397.76 : x
  2. Step 2: Convert to fraction form
    13,366.08/18,444.72 = 7,397.76/x
  3. Step 3: Cross multiply
    13,366.08x = 18,444.72 × 7,397.76
  4. Step 4: Simplify right side
    13,366.08x = 136,449,611.83
  5. Step 5: Solve for x
    x = 136,449,611.83/13,366.08
  6. Step 6: Final answer
    x = 10,208.65

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Double scale
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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.