Home / 13,087.74-19,617.90-6,415.02

Finding the Fourth Proportional to 13,087.74, 19,617.90 and 6,415.02

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Solution

The fourth proportional to 13,087.74, 19,617.90 and 6,415.02 is: 9,615.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.74 : 19,617.90 = 6,415.02 : x
  2. Step 2: Convert to fraction form
    13,087.74/19,617.90 = 6,415.02/x
  3. Step 3: Cross multiply
    13,087.74x = 19,617.90 × 6,415.02
  4. Step 4: Simplify right side
    13,087.74x = 125,849,220.86
  5. Step 5: Solve for x
    x = 125,849,220.86/13,087.74
  6. Step 6: Final answer
    x = 9,615.81

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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.