Home / 13,317.10-19,968.81-7,080.50

Finding the Fourth Proportional to 13,317.10, 19,968.81 and 7,080.50

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Solution

The fourth proportional to 13,317.10, 19,968.81 and 7,080.50 is: 10,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.10 : 19,968.81 = 7,080.50 : x
  2. Step 2: Convert to fraction form
    13,317.10/19,968.81 = 7,080.50/x
  3. Step 3: Cross multiply
    13,317.10x = 19,968.81 × 7,080.50
  4. Step 4: Simplify right side
    13,317.10x = 141,389,159.21
  5. Step 5: Solve for x
    x = 141,389,159.21/13,317.10
  6. Step 6: Final answer
    x = 10,617.11

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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.