Home / 8,127.24-12,210.30-5,211.24

Finding the Fourth Proportional to 8,127.24, 12,210.30 and 5,211.24

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Solution

The fourth proportional to 8,127.24, 12,210.30 and 5,211.24 is: 7,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.24 : 12,210.30 = 5,211.24 : x
  2. Step 2: Convert to fraction form
    8,127.24/12,210.30 = 5,211.24/x
  3. Step 3: Cross multiply
    8,127.24x = 12,210.30 × 5,211.24
  4. Step 4: Simplify right side
    8,127.24x = 63,630,803.77
  5. Step 5: Solve for x
    x = 63,630,803.77/8,127.24
  6. Step 6: Final answer
    x = 7,829.33

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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.