Home / 6,636.89-9,155.47-4,643.07

Finding the Fourth Proportional to 6,636.89, 9,155.47 and 4,643.07

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Solution

The fourth proportional to 6,636.89, 9,155.47 and 4,643.07 is: 6,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.89 : 9,155.47 = 4,643.07 : x
  2. Step 2: Convert to fraction form
    6,636.89/9,155.47 = 4,643.07/x
  3. Step 3: Cross multiply
    6,636.89x = 9,155.47 × 4,643.07
  4. Step 4: Simplify right side
    6,636.89x = 42,509,488.09
  5. Step 5: Solve for x
    x = 42,509,488.09/6,636.89
  6. Step 6: Final answer
    x = 6,405.03

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Double scale
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Similar ratio
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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.