Home / 19,187.50-28,779.93-11,793.10

Finding the Fourth Proportional to 19,187.50, 28,779.93 and 11,793.10

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Solution

The fourth proportional to 19,187.50, 28,779.93 and 11,793.10 is: 17,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.50 : 28,779.93 = 11,793.10 : x
  2. Step 2: Convert to fraction form
    19,187.50/28,779.93 = 11,793.10/x
  3. Step 3: Cross multiply
    19,187.50x = 28,779.93 × 11,793.10
  4. Step 4: Simplify right side
    19,187.50x = 339,404,592.48
  5. Step 5: Solve for x
    x = 339,404,592.48/19,187.50
  6. Step 6: Final answer
    x = 17,688.84

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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.