Home / 8,130.15-11,219.82-4,984.50

Finding the Fourth Proportional to 8,130.15, 11,219.82 and 4,984.50

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Solution

The fourth proportional to 8,130.15, 11,219.82 and 4,984.50 is: 6,878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.15 : 11,219.82 = 4,984.50 : x
  2. Step 2: Convert to fraction form
    8,130.15/11,219.82 = 4,984.50/x
  3. Step 3: Cross multiply
    8,130.15x = 11,219.82 × 4,984.50
  4. Step 4: Simplify right side
    8,130.15x = 55,925,192.79
  5. Step 5: Solve for x
    x = 55,925,192.79/8,130.15
  6. Step 6: Final answer
    x = 6,878.74

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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.