Home / 15,550.42-21,459.72-9,177.16

Finding the Fourth Proportional to 15,550.42, 21,459.72 and 9,177.16

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Solution

The fourth proportional to 15,550.42, 21,459.72 and 9,177.16 is: 12,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.42 : 21,459.72 = 9,177.16 : x
  2. Step 2: Convert to fraction form
    15,550.42/21,459.72 = 9,177.16/x
  3. Step 3: Cross multiply
    15,550.42x = 21,459.72 × 9,177.16
  4. Step 4: Simplify right side
    15,550.42x = 196,939,284.00
  5. Step 5: Solve for x
    x = 196,939,284.00/15,550.42
  6. Step 6: Final answer
    x = 12,664.56

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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.