Home / 13,312.53-19,963.31-4,988.25

Finding the Fourth Proportional to 13,312.53, 19,963.31 and 4,988.25

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Solution

The fourth proportional to 13,312.53, 19,963.31 and 4,988.25 is: 7,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.53 : 19,963.31 = 4,988.25 : x
  2. Step 2: Convert to fraction form
    13,312.53/19,963.31 = 4,988.25/x
  3. Step 3: Cross multiply
    13,312.53x = 19,963.31 × 4,988.25
  4. Step 4: Simplify right side
    13,312.53x = 99,581,956.17
  5. Step 5: Solve for x
    x = 99,581,956.17/13,312.53
  6. Step 6: Final answer
    x = 7,480.32

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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.