Home / 9,180.99-12,669.74-4,989.24

Finding the Fourth Proportional to 9,180.99, 12,669.74 and 4,989.24

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Solution

The fourth proportional to 9,180.99, 12,669.74 and 4,989.24 is: 6,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.99 : 12,669.74 = 4,989.24 : x
  2. Step 2: Convert to fraction form
    9,180.99/12,669.74 = 4,989.24/x
  3. Step 3: Cross multiply
    9,180.99x = 12,669.74 × 4,989.24
  4. Step 4: Simplify right side
    9,180.99x = 63,212,348.65
  5. Step 5: Solve for x
    x = 63,212,348.65/9,180.99
  6. Step 6: Final answer
    x = 6,885.13

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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.