Home / 9,979.50-14,961.06-4,140.30

Finding the Fourth Proportional to 9,979.50, 14,961.06 and 4,140.30

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Solution

The fourth proportional to 9,979.50, 14,961.06 and 4,140.30 is: 6,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.50 : 14,961.06 = 4,140.30 : x
  2. Step 2: Convert to fraction form
    9,979.50/14,961.06 = 4,140.30/x
  3. Step 3: Cross multiply
    9,979.50x = 14,961.06 × 4,140.30
  4. Step 4: Simplify right side
    9,979.50x = 61,943,276.72
  5. Step 5: Solve for x
    x = 61,943,276.72/9,979.50
  6. Step 6: Final answer
    x = 6,207.05

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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.