Home / 13,987.65-19,302.96-7,700.03

Finding the Fourth Proportional to 13,987.65, 19,302.96 and 7,700.03

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Solution

The fourth proportional to 13,987.65, 19,302.96 and 7,700.03 is: 10,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.65 : 19,302.96 = 7,700.03 : x
  2. Step 2: Convert to fraction form
    13,987.65/19,302.96 = 7,700.03/x
  3. Step 3: Cross multiply
    13,987.65x = 19,302.96 × 7,700.03
  4. Step 4: Simplify right side
    13,987.65x = 148,633,375.84
  5. Step 5: Solve for x
    x = 148,633,375.84/13,987.65
  6. Step 6: Final answer
    x = 10,626.04

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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.