Home / 13,301.81-19,955.65-3,942.57

Finding the Fourth Proportional to 13,301.81, 19,955.65 and 3,942.57

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Solution

The fourth proportional to 13,301.81, 19,955.65 and 3,942.57 is: 5,914.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.81 : 19,955.65 = 3,942.57 : x
  2. Step 2: Convert to fraction form
    13,301.81/19,955.65 = 3,942.57/x
  3. Step 3: Cross multiply
    13,301.81x = 19,955.65 × 3,942.57
  4. Step 4: Simplify right side
    13,301.81x = 78,676,547.02
  5. Step 5: Solve for x
    x = 78,676,547.02/13,301.81
  6. Step 6: Final answer
    x = 5,914.72

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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.