Home / 7,869.19-10,859.08-4,331.72

Finding the Fourth Proportional to 7,869.19, 10,859.08 and 4,331.72

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Solution

The fourth proportional to 7,869.19, 10,859.08 and 4,331.72 is: 5,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.19 : 10,859.08 = 4,331.72 : x
  2. Step 2: Convert to fraction form
    7,869.19/10,859.08 = 4,331.72/x
  3. Step 3: Cross multiply
    7,869.19x = 10,859.08 × 4,331.72
  4. Step 4: Simplify right side
    7,869.19x = 47,038,494.02
  5. Step 5: Solve for x
    x = 47,038,494.02/7,869.19
  6. Step 6: Final answer
    x = 5,977.55

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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.