Home / 13,319.58-18,360.50-9,957.27

Finding the Fourth Proportional to 13,319.58, 18,360.50 and 9,957.27

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Solution

The fourth proportional to 13,319.58, 18,360.50 and 9,957.27 is: 13,725.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.58 : 18,360.50 = 9,957.27 : x
  2. Step 2: Convert to fraction form
    13,319.58/18,360.50 = 9,957.27/x
  3. Step 3: Cross multiply
    13,319.58x = 18,360.50 × 9,957.27
  4. Step 4: Simplify right side
    13,319.58x = 182,820,406.05
  5. Step 5: Solve for x
    x = 182,820,406.05/13,319.58
  6. Step 6: Final answer
    x = 13,725.69

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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.