Home / 8,570.90-12,861.81-5,727.80

Finding the Fourth Proportional to 8,570.90, 12,861.81 and 5,727.80

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Solution

The fourth proportional to 8,570.90, 12,861.81 and 5,727.80 is: 8,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.90 : 12,861.81 = 5,727.80 : x
  2. Step 2: Convert to fraction form
    8,570.90/12,861.81 = 5,727.80/x
  3. Step 3: Cross multiply
    8,570.90x = 12,861.81 × 5,727.80
  4. Step 4: Simplify right side
    8,570.90x = 73,669,811.01
  5. Step 5: Solve for x
    x = 73,669,811.01/8,570.90
  6. Step 6: Final answer
    x = 8,595.35

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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.