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Finding the Fourth Proportional to 13,010.88, 19,477.92 and 12,838.08

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Solution

The fourth proportional to 13,010.88, 19,477.92 and 12,838.08 is: 19,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.88 : 19,477.92 = 12,838.08 : x
  2. Step 2: Convert to fraction form
    13,010.88/19,477.92 = 12,838.08/x
  3. Step 3: Cross multiply
    13,010.88x = 19,477.92 × 12,838.08
  4. Step 4: Simplify right side
    13,010.88x = 250,059,095.19
  5. Step 5: Solve for x
    x = 250,059,095.19/13,010.88
  6. Step 6: Final answer
    x = 19,219.23

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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.