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Finding the Fourth Proportional to 12,901.44, 17,803.08 and 7,235.76

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Solution

The fourth proportional to 12,901.44, 17,803.08 and 7,235.76 is: 9,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.44 : 17,803.08 = 7,235.76 : x
  2. Step 2: Convert to fraction form
    12,901.44/17,803.08 = 7,235.76/x
  3. Step 3: Cross multiply
    12,901.44x = 17,803.08 × 7,235.76
  4. Step 4: Simplify right side
    12,901.44x = 128,818,814.14
  5. Step 5: Solve for x
    x = 128,818,814.14/12,901.44
  6. Step 6: Final answer
    x = 9,984.84

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Half scale
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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.