Home / 9,122.72-12,589.26-5,089.50

Finding the Fourth Proportional to 9,122.72, 12,589.26 and 5,089.50

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Solution

The fourth proportional to 9,122.72, 12,589.26 and 5,089.50 is: 7,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.72 : 12,589.26 = 5,089.50 : x
  2. Step 2: Convert to fraction form
    9,122.72/12,589.26 = 5,089.50/x
  3. Step 3: Cross multiply
    9,122.72x = 12,589.26 × 5,089.50
  4. Step 4: Simplify right side
    9,122.72x = 64,073,038.77
  5. Step 5: Solve for x
    x = 64,073,038.77/9,122.72
  6. Step 6: Final answer
    x = 7,023.46

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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.