Home / 13,909.73-20,858.12-7,339.01

Finding the Fourth Proportional to 13,909.73, 20,858.12 and 7,339.01

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Solution

The fourth proportional to 13,909.73, 20,858.12 and 7,339.01 is: 11,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.73 : 20,858.12 = 7,339.01 : x
  2. Step 2: Convert to fraction form
    13,909.73/20,858.12 = 7,339.01/x
  3. Step 3: Cross multiply
    13,909.73x = 20,858.12 × 7,339.01
  4. Step 4: Simplify right side
    13,909.73x = 153,077,914.57
  5. Step 5: Solve for x
    x = 153,077,914.57/13,909.73
  6. Step 6: Final answer
    x = 11,005.10

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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.