Home / 7,182.60-9,911.52-4,038.72

Finding the Fourth Proportional to 7,182.60, 9,911.52 and 4,038.72

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Solution

The fourth proportional to 7,182.60, 9,911.52 and 4,038.72 is: 5,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.60 : 9,911.52 = 4,038.72 : x
  2. Step 2: Convert to fraction form
    7,182.60/9,911.52 = 4,038.72/x
  3. Step 3: Cross multiply
    7,182.60x = 9,911.52 × 4,038.72
  4. Step 4: Simplify right side
    7,182.60x = 40,029,854.05
  5. Step 5: Solve for x
    x = 40,029,854.05/7,182.60
  6. Step 6: Final answer
    x = 5,573.17

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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.