Home / 13,554.56-18,699.36-7,963.04

Finding the Fourth Proportional to 13,554.56, 18,699.36 and 7,963.04

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Solution

The fourth proportional to 13,554.56, 18,699.36 and 7,963.04 is: 10,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.56 : 18,699.36 = 7,963.04 : x
  2. Step 2: Convert to fraction form
    13,554.56/18,699.36 = 7,963.04/x
  3. Step 3: Cross multiply
    13,554.56x = 18,699.36 × 7,963.04
  4. Step 4: Simplify right side
    13,554.56x = 148,903,751.65
  5. Step 5: Solve for x
    x = 148,903,751.65/13,554.56
  6. Step 6: Final answer
    x = 10,985.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.