Home / 18,999.60-28,496.70-5,853.30

Finding the Fourth Proportional to 18,999.60, 28,496.70 and 5,853.30

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Solution

The fourth proportional to 18,999.60, 28,496.70 and 5,853.30 is: 8,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.60 : 28,496.70 = 5,853.30 : x
  2. Step 2: Convert to fraction form
    18,999.60/28,496.70 = 5,853.30/x
  3. Step 3: Cross multiply
    18,999.60x = 28,496.70 × 5,853.30
  4. Step 4: Simplify right side
    18,999.60x = 166,799,734.11
  5. Step 5: Solve for x
    x = 166,799,734.11/18,999.60
  6. Step 6: Final answer
    x = 8,779.12

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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.