Home / 12,410.25-18,615.39-11,787.36

Finding the Fourth Proportional to 12,410.25, 18,615.39 and 11,787.36

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Solution

The fourth proportional to 12,410.25, 18,615.39 and 11,787.36 is: 17,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.25 : 18,615.39 = 11,787.36 : x
  2. Step 2: Convert to fraction form
    12,410.25/18,615.39 = 11,787.36/x
  3. Step 3: Cross multiply
    12,410.25x = 18,615.39 × 11,787.36
  4. Step 4: Simplify right side
    12,410.25x = 219,426,303.47
  5. Step 5: Solve for x
    x = 219,426,303.47/12,410.25
  6. Step 6: Final answer
    x = 17,681.05

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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.