Home / 15,181.51-20,950.26-8,807.62

Finding the Fourth Proportional to 15,181.51, 20,950.26 and 8,807.62

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Solution

The fourth proportional to 15,181.51, 20,950.26 and 8,807.62 is: 12,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.51 : 20,950.26 = 8,807.62 : x
  2. Step 2: Convert to fraction form
    15,181.51/20,950.26 = 8,807.62/x
  3. Step 3: Cross multiply
    15,181.51x = 20,950.26 × 8,807.62
  4. Step 4: Simplify right side
    15,181.51x = 184,521,928.98
  5. Step 5: Solve for x
    x = 184,521,928.98/15,181.51
  6. Step 6: Final answer
    x = 12,154.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.