Home / 13,787.23-19,026.39-7,818.93

Finding the Fourth Proportional to 13,787.23, 19,026.39 and 7,818.93

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Solution

The fourth proportional to 13,787.23, 19,026.39 and 7,818.93 is: 10,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.23 : 19,026.39 = 7,818.93 : x
  2. Step 2: Convert to fraction form
    13,787.23/19,026.39 = 7,818.93/x
  3. Step 3: Cross multiply
    13,787.23x = 19,026.39 × 7,818.93
  4. Step 4: Simplify right side
    13,787.23x = 148,766,011.56
  5. Step 5: Solve for x
    x = 148,766,011.56/13,787.23
  6. Step 6: Final answer
    x = 10,790.13

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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.