Home / 13,278.48-19,917.72-4,958.16

Finding the Fourth Proportional to 13,278.48, 19,917.72 and 4,958.16

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Solution

The fourth proportional to 13,278.48, 19,917.72 and 4,958.16 is: 7,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.48 : 19,917.72 = 4,958.16 : x
  2. Step 2: Convert to fraction form
    13,278.48/19,917.72 = 4,958.16/x
  3. Step 3: Cross multiply
    13,278.48x = 19,917.72 × 4,958.16
  4. Step 4: Simplify right side
    13,278.48x = 98,755,242.60
  5. Step 5: Solve for x
    x = 98,755,242.60/13,278.48
  6. Step 6: Final answer
    x = 7,437.24

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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.