Home / 9,180.72-12,669.74-4,988.96

Finding the Fourth Proportional to 9,180.72, 12,669.74 and 4,988.96

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Solution

The fourth proportional to 9,180.72, 12,669.74 and 4,988.96 is: 6,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.72 : 12,669.74 = 4,988.96 : x
  2. Step 2: Convert to fraction form
    9,180.72/12,669.74 = 4,988.96/x
  3. Step 3: Cross multiply
    9,180.72x = 12,669.74 × 4,988.96
  4. Step 4: Simplify right side
    9,180.72x = 63,208,826.07
  5. Step 5: Solve for x
    x = 63,208,826.07/9,180.72
  6. Step 6: Final answer
    x = 6,884.95

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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.