Home / 10,117.34-15,182.49-4,920.38

Finding the Fourth Proportional to 10,117.34, 15,182.49 and 4,920.38

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Solution

The fourth proportional to 10,117.34, 15,182.49 and 4,920.38 is: 7,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.34 : 15,182.49 = 4,920.38 : x
  2. Step 2: Convert to fraction form
    10,117.34/15,182.49 = 4,920.38/x
  3. Step 3: Cross multiply
    10,117.34x = 15,182.49 × 4,920.38
  4. Step 4: Simplify right side
    10,117.34x = 74,703,620.15
  5. Step 5: Solve for x
    x = 74,703,620.15/10,117.34
  6. Step 6: Final answer
    x = 7,383.72

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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.