Home / 8,784.42-12,101.76-6,127.08

Finding the Fourth Proportional to 8,784.42, 12,101.76 and 6,127.08

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Solution

The fourth proportional to 8,784.42, 12,101.76 and 6,127.08 is: 8,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.42 : 12,101.76 = 6,127.08 : x
  2. Step 2: Convert to fraction form
    8,784.42/12,101.76 = 6,127.08/x
  3. Step 3: Cross multiply
    8,784.42x = 12,101.76 × 6,127.08
  4. Step 4: Simplify right side
    8,784.42x = 74,148,451.66
  5. Step 5: Solve for x
    x = 74,148,451.66/8,784.42
  6. Step 6: Final answer
    x = 8,440.90

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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.