Home / 6,620.48-9,140.76-5,056.64

Finding the Fourth Proportional to 6,620.48, 9,140.76 and 5,056.64

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Solution

The fourth proportional to 6,620.48, 9,140.76 and 5,056.64 is: 6,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.48 : 9,140.76 = 5,056.64 : x
  2. Step 2: Convert to fraction form
    6,620.48/9,140.76 = 5,056.64/x
  3. Step 3: Cross multiply
    6,620.48x = 9,140.76 × 5,056.64
  4. Step 4: Simplify right side
    6,620.48x = 46,221,532.65
  5. Step 5: Solve for x
    x = 46,221,532.65/6,620.48
  6. Step 6: Final answer
    x = 6,981.60

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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.