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Finding the Fourth Proportional to 12,901.58, 19,335.44 and 9,355.58

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Solution

The fourth proportional to 12,901.58, 19,335.44 and 9,355.58 is: 14,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.58 : 19,335.44 = 9,355.58 : x
  2. Step 2: Convert to fraction form
    12,901.58/19,335.44 = 9,355.58/x
  3. Step 3: Cross multiply
    12,901.58x = 19,335.44 × 9,355.58
  4. Step 4: Simplify right side
    12,901.58x = 180,894,182.47
  5. Step 5: Solve for x
    x = 180,894,182.47/12,901.58
  6. Step 6: Final answer
    x = 14,021.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.