Home / 13,998.80-19,322.18-8,031.02

Finding the Fourth Proportional to 13,998.80, 19,322.18 and 8,031.02

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Solution

The fourth proportional to 13,998.80, 19,322.18 and 8,031.02 is: 11,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.80 : 19,322.18 = 8,031.02 : x
  2. Step 2: Convert to fraction form
    13,998.80/19,322.18 = 8,031.02/x
  3. Step 3: Cross multiply
    13,998.80x = 19,322.18 × 8,031.02
  4. Step 4: Simplify right side
    13,998.80x = 155,176,814.02
  5. Step 5: Solve for x
    x = 155,176,814.02/13,998.80
  6. Step 6: Final answer
    x = 11,085.01

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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.