Home / 6,263.04-8,639.44-5,518.80

Finding the Fourth Proportional to 6,263.04, 8,639.44 and 5,518.80

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Solution

The fourth proportional to 6,263.04, 8,639.44 and 5,518.80 is: 7,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.04 : 8,639.44 = 5,518.80 : x
  2. Step 2: Convert to fraction form
    6,263.04/8,639.44 = 5,518.80/x
  3. Step 3: Cross multiply
    6,263.04x = 8,639.44 × 5,518.80
  4. Step 4: Simplify right side
    6,263.04x = 47,679,341.47
  5. Step 5: Solve for x
    x = 47,679,341.47/6,263.04
  6. Step 6: Final answer
    x = 7,612.81

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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.