Home / 7,148.95-9,863.19-4,315.25

Finding the Fourth Proportional to 7,148.95, 9,863.19 and 4,315.25

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Solution

The fourth proportional to 7,148.95, 9,863.19 and 4,315.25 is: 5,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.95 : 9,863.19 = 4,315.25 : x
  2. Step 2: Convert to fraction form
    7,148.95/9,863.19 = 4,315.25/x
  3. Step 3: Cross multiply
    7,148.95x = 9,863.19 × 4,315.25
  4. Step 4: Simplify right side
    7,148.95x = 42,562,059.76
  5. Step 5: Solve for x
    x = 42,562,059.76/7,148.95
  6. Step 6: Final answer
    x = 5,953.61

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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.