Home / 13,415.52-20,117.16-5,089.64

Finding the Fourth Proportional to 13,415.52, 20,117.16 and 5,089.64

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Solution

The fourth proportional to 13,415.52, 20,117.16 and 5,089.64 is: 7,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.52 : 20,117.16 = 5,089.64 : x
  2. Step 2: Convert to fraction form
    13,415.52/20,117.16 = 5,089.64/x
  3. Step 3: Cross multiply
    13,415.52x = 20,117.16 × 5,089.64
  4. Step 4: Simplify right side
    13,415.52x = 102,389,001.64
  5. Step 5: Solve for x
    x = 102,389,001.64/13,415.52
  6. Step 6: Final answer
    x = 7,632.13

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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.