Home / 13,998.30-20,973.15-9,065.40

Finding the Fourth Proportional to 13,998.30, 20,973.15 and 9,065.40

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Solution

The fourth proportional to 13,998.30, 20,973.15 and 9,065.40 is: 13,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.30 : 20,973.15 = 9,065.40 : x
  2. Step 2: Convert to fraction form
    13,998.30/20,973.15 = 9,065.40/x
  3. Step 3: Cross multiply
    13,998.30x = 20,973.15 × 9,065.40
  4. Step 4: Simplify right side
    13,998.30x = 190,129,994.01
  5. Step 5: Solve for x
    x = 190,129,994.01/13,998.30
  6. Step 6: Final answer
    x = 13,582.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.