Home / 13,998.63-19,318.12-7,711.01

Finding the Fourth Proportional to 13,998.63, 19,318.12 and 7,711.01

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Solution

The fourth proportional to 13,998.63, 19,318.12 and 7,711.01 is: 10,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.63 : 19,318.12 = 7,711.01 : x
  2. Step 2: Convert to fraction form
    13,998.63/19,318.12 = 7,711.01/x
  3. Step 3: Cross multiply
    13,998.63x = 19,318.12 × 7,711.01
  4. Step 4: Simplify right side
    13,998.63x = 148,962,173.08
  5. Step 5: Solve for x
    x = 148,962,173.08/13,998.63
  6. Step 6: Final answer
    x = 10,641.19

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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.