Home / 13,113.46-19,655.61-5,318.02

Finding the Fourth Proportional to 13,113.46, 19,655.61 and 5,318.02

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Solution

The fourth proportional to 13,113.46, 19,655.61 and 5,318.02 is: 7,971.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.46 : 19,655.61 = 5,318.02 : x
  2. Step 2: Convert to fraction form
    13,113.46/19,655.61 = 5,318.02/x
  3. Step 3: Cross multiply
    13,113.46x = 19,655.61 × 5,318.02
  4. Step 4: Simplify right side
    13,113.46x = 104,528,927.09
  5. Step 5: Solve for x
    x = 104,528,927.09/13,113.46
  6. Step 6: Final answer
    x = 7,971.12

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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.