Home / 9,430.81-13,014.60-5,181.95

Finding the Fourth Proportional to 9,430.81, 13,014.60 and 5,181.95

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Solution

The fourth proportional to 9,430.81, 13,014.60 and 5,181.95 is: 7,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.81 : 13,014.60 = 5,181.95 : x
  2. Step 2: Convert to fraction form
    9,430.81/13,014.60 = 5,181.95/x
  3. Step 3: Cross multiply
    9,430.81x = 13,014.60 × 5,181.95
  4. Step 4: Simplify right side
    9,430.81x = 67,441,039.01
  5. Step 5: Solve for x
    x = 67,441,039.01/9,430.81
  6. Step 6: Final answer
    x = 7,151.14

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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.