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Finding the Fourth Proportional to 13,013.48, 19,551.72 and 8,342.48

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Solution

The fourth proportional to 13,013.48, 19,551.72 and 8,342.48 is: 12,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.48 : 19,551.72 = 8,342.48 : x
  2. Step 2: Convert to fraction form
    13,013.48/19,551.72 = 8,342.48/x
  3. Step 3: Cross multiply
    13,013.48x = 19,551.72 × 8,342.48
  4. Step 4: Simplify right side
    13,013.48x = 163,109,833.07
  5. Step 5: Solve for x
    x = 163,109,833.07/13,013.48
  6. Step 6: Final answer
    x = 12,533.91

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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.