Home / 13,787.12-19,026.12-7,499.48

Finding the Fourth Proportional to 13,787.12, 19,026.12 and 7,499.48

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Solution

The fourth proportional to 13,787.12, 19,026.12 and 7,499.48 is: 10,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.12 : 19,026.12 = 7,499.48 : x
  2. Step 2: Convert to fraction form
    13,787.12/19,026.12 = 7,499.48/x
  3. Step 3: Cross multiply
    13,787.12x = 19,026.12 × 7,499.48
  4. Step 4: Simplify right side
    13,787.12x = 142,686,006.42
  5. Step 5: Solve for x
    x = 142,686,006.42/13,787.12
  6. Step 6: Final answer
    x = 10,349.22

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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.