Home / 18,926.16-28,393.29-5,779.50

Finding the Fourth Proportional to 18,926.16, 28,393.29 and 5,779.50

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Solution

The fourth proportional to 18,926.16, 28,393.29 and 5,779.50 is: 8,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.16 : 28,393.29 = 5,779.50 : x
  2. Step 2: Convert to fraction form
    18,926.16/28,393.29 = 5,779.50/x
  3. Step 3: Cross multiply
    18,926.16x = 28,393.29 × 5,779.50
  4. Step 4: Simplify right side
    18,926.16x = 164,099,019.56
  5. Step 5: Solve for x
    x = 164,099,019.56/18,926.16
  6. Step 6: Final answer
    x = 8,670.49

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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.