Home / 9,403.65-12,977.01-5,211.90

Finding the Fourth Proportional to 9,403.65, 12,977.01 and 5,211.90

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Solution

The fourth proportional to 9,403.65, 12,977.01 and 5,211.90 is: 7,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.65 : 12,977.01 = 5,211.90 : x
  2. Step 2: Convert to fraction form
    9,403.65/12,977.01 = 5,211.90/x
  3. Step 3: Cross multiply
    9,403.65x = 12,977.01 × 5,211.90
  4. Step 4: Simplify right side
    9,403.65x = 67,634,878.42
  5. Step 5: Solve for x
    x = 67,634,878.42/9,403.65
  6. Step 6: Final answer
    x = 7,192.41

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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.