Home / 7,875.96-10,868.76-4,339.05

Finding the Fourth Proportional to 7,875.96, 10,868.76 and 4,339.05

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Solution

The fourth proportional to 7,875.96, 10,868.76 and 4,339.05 is: 5,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.96 : 10,868.76 = 4,339.05 : x
  2. Step 2: Convert to fraction form
    7,875.96/10,868.76 = 4,339.05/x
  3. Step 3: Cross multiply
    7,875.96x = 10,868.76 × 4,339.05
  4. Step 4: Simplify right side
    7,875.96x = 47,160,093.08
  5. Step 5: Solve for x
    x = 47,160,093.08/7,875.96
  6. Step 6: Final answer
    x = 5,987.85

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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.