Home / 6,140.08-8,463.72-5,631.60

Finding the Fourth Proportional to 6,140.08, 8,463.72 and 5,631.60

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Solution

The fourth proportional to 6,140.08, 8,463.72 and 5,631.60 is: 7,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.08 : 8,463.72 = 5,631.60 : x
  2. Step 2: Convert to fraction form
    6,140.08/8,463.72 = 5,631.60/x
  3. Step 3: Cross multiply
    6,140.08x = 8,463.72 × 5,631.60
  4. Step 4: Simplify right side
    6,140.08x = 47,664,285.55
  5. Step 5: Solve for x
    x = 47,664,285.55/6,140.08
  6. Step 6: Final answer
    x = 7,762.81

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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.