Home / 9,319.69-12,861.41-5,070.99

Finding the Fourth Proportional to 9,319.69, 12,861.41 and 5,070.99

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Solution

The fourth proportional to 9,319.69, 12,861.41 and 5,070.99 is: 6,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.69 : 12,861.41 = 5,070.99 : x
  2. Step 2: Convert to fraction form
    9,319.69/12,861.41 = 5,070.99/x
  3. Step 3: Cross multiply
    9,319.69x = 12,861.41 × 5,070.99
  4. Step 4: Simplify right side
    9,319.69x = 65,220,081.50
  5. Step 5: Solve for x
    x = 65,220,081.50/9,319.69
  6. Step 6: Final answer
    x = 6,998.10

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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.