Home / 9,421.56-13,001.92-5,173.02

Finding the Fourth Proportional to 9,421.56, 13,001.92 and 5,173.02

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Solution

The fourth proportional to 9,421.56, 13,001.92 and 5,173.02 is: 7,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.56 : 13,001.92 = 5,173.02 : x
  2. Step 2: Convert to fraction form
    9,421.56/13,001.92 = 5,173.02/x
  3. Step 3: Cross multiply
    9,421.56x = 13,001.92 × 5,173.02
  4. Step 4: Simplify right side
    9,421.56x = 67,259,192.20
  5. Step 5: Solve for x
    x = 67,259,192.20/9,421.56
  6. Step 6: Final answer
    x = 7,138.86

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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.