Home / 11,109.61-16,669.02-4,866.40

Finding the Fourth Proportional to 11,109.61, 16,669.02 and 4,866.40

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Solution

The fourth proportional to 11,109.61, 16,669.02 and 4,866.40 is: 7,301.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.61 : 16,669.02 = 4,866.40 : x
  2. Step 2: Convert to fraction form
    11,109.61/16,669.02 = 4,866.40/x
  3. Step 3: Cross multiply
    11,109.61x = 16,669.02 × 4,866.40
  4. Step 4: Simplify right side
    11,109.61x = 81,118,118.93
  5. Step 5: Solve for x
    x = 81,118,118.93/11,109.61
  6. Step 6: Final answer
    x = 7,301.62

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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.