Home / 9,320.15-13,980.23-6,389.57

Finding the Fourth Proportional to 9,320.15, 13,980.23 and 6,389.57

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Solution

The fourth proportional to 9,320.15, 13,980.23 and 6,389.57 is: 9,584.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.15 : 13,980.23 = 6,389.57 : x
  2. Step 2: Convert to fraction form
    9,320.15/13,980.23 = 6,389.57/x
  3. Step 3: Cross multiply
    9,320.15x = 13,980.23 × 6,389.57
  4. Step 4: Simplify right side
    9,320.15x = 89,327,658.20
  5. Step 5: Solve for x
    x = 89,327,658.20/9,320.15
  6. Step 6: Final answer
    x = 9,584.36

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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.