Home / 12,688.98-19,056.15-11,056.02

Finding the Fourth Proportional to 12,688.98, 19,056.15 and 11,056.02

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Solution

The fourth proportional to 12,688.98, 19,056.15 and 11,056.02 is: 16,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.98 : 19,056.15 = 11,056.02 : x
  2. Step 2: Convert to fraction form
    12,688.98/19,056.15 = 11,056.02/x
  3. Step 3: Cross multiply
    12,688.98x = 19,056.15 × 11,056.02
  4. Step 4: Simplify right side
    12,688.98x = 210,685,175.52
  5. Step 5: Solve for x
    x = 210,685,175.52/12,688.98
  6. Step 6: Final answer
    x = 16,603.79

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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.