Home / 13,995.68-19,314.04-7,708.06

Finding the Fourth Proportional to 13,995.68, 19,314.04 and 7,708.06

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Solution

The fourth proportional to 13,995.68, 19,314.04 and 7,708.06 is: 10,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.68 : 19,314.04 = 7,708.06 : x
  2. Step 2: Convert to fraction form
    13,995.68/19,314.04 = 7,708.06/x
  3. Step 3: Cross multiply
    13,995.68x = 19,314.04 × 7,708.06
  4. Step 4: Simplify right side
    13,995.68x = 148,873,779.16
  5. Step 5: Solve for x
    x = 148,873,779.16/13,995.68
  6. Step 6: Final answer
    x = 10,637.12

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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.