Home / 10,219.72-15,333.90-4,379.08

Finding the Fourth Proportional to 10,219.72, 15,333.90 and 4,379.08

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Solution

The fourth proportional to 10,219.72, 15,333.90 and 4,379.08 is: 6,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.72 : 15,333.90 = 4,379.08 : x
  2. Step 2: Convert to fraction form
    10,219.72/15,333.90 = 4,379.08/x
  3. Step 3: Cross multiply
    10,219.72x = 15,333.90 × 4,379.08
  4. Step 4: Simplify right side
    10,219.72x = 67,148,374.81
  5. Step 5: Solve for x
    x = 67,148,374.81/10,219.72
  6. Step 6: Final answer
    x = 6,570.47

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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.