Home / 9,319.80-12,861.23-5,070.99

Finding the Fourth Proportional to 9,319.80, 12,861.23 and 5,070.99

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Solution

The fourth proportional to 9,319.80, 12,861.23 and 5,070.99 is: 6,997.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.80 : 12,861.23 = 5,070.99 : x
  2. Step 2: Convert to fraction form
    9,319.80/12,861.23 = 5,070.99/x
  3. Step 3: Cross multiply
    9,319.80x = 12,861.23 × 5,070.99
  4. Step 4: Simplify right side
    9,319.80x = 65,219,143.36
  5. Step 5: Solve for x
    x = 65,219,143.36/9,319.80
  6. Step 6: Final answer
    x = 6,997.91

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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.