Home / 12,425.36-18,645.53-4,639.64

Finding the Fourth Proportional to 12,425.36, 18,645.53 and 4,639.64

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Solution

The fourth proportional to 12,425.36, 18,645.53 and 4,639.64 is: 6,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.36 : 18,645.53 = 4,639.64 : x
  2. Step 2: Convert to fraction form
    12,425.36/18,645.53 = 4,639.64/x
  3. Step 3: Cross multiply
    12,425.36x = 18,645.53 × 4,639.64
  4. Step 4: Simplify right side
    12,425.36x = 86,508,430.38
  5. Step 5: Solve for x
    x = 86,508,430.38/12,425.36
  6. Step 6: Final answer
    x = 6,962.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.