Home / 10,390.89-15,582.96-3,369.40

Finding the Fourth Proportional to 10,390.89, 15,582.96 and 3,369.40

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Solution

The fourth proportional to 10,390.89, 15,582.96 and 3,369.40 is: 5,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.89 : 15,582.96 = 3,369.40 : x
  2. Step 2: Convert to fraction form
    10,390.89/15,582.96 = 3,369.40/x
  3. Step 3: Cross multiply
    10,390.89x = 15,582.96 × 3,369.40
  4. Step 4: Simplify right side
    10,390.89x = 52,505,225.42
  5. Step 5: Solve for x
    x = 52,505,225.42/10,390.89
  6. Step 6: Final answer
    x = 5,053.01

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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.