Home / 13,217.74-19,822.02-5,317.90

Finding the Fourth Proportional to 13,217.74, 19,822.02 and 5,317.90

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Solution

The fourth proportional to 13,217.74, 19,822.02 and 5,317.90 is: 7,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.74 : 19,822.02 = 5,317.90 : x
  2. Step 2: Convert to fraction form
    13,217.74/19,822.02 = 5,317.90/x
  3. Step 3: Cross multiply
    13,217.74x = 19,822.02 × 5,317.90
  4. Step 4: Simplify right side
    13,217.74x = 105,411,520.16
  5. Step 5: Solve for x
    x = 105,411,520.16/13,217.74
  6. Step 6: Final answer
    x = 7,975.00

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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.