Home / 12,626.59-18,918.95-7,681.27

Finding the Fourth Proportional to 12,626.59, 18,918.95 and 7,681.27

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Solution

The fourth proportional to 12,626.59, 18,918.95 and 7,681.27 is: 11,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.59 : 18,918.95 = 7,681.27 : x
  2. Step 2: Convert to fraction form
    12,626.59/18,918.95 = 7,681.27/x
  3. Step 3: Cross multiply
    12,626.59x = 18,918.95 × 7,681.27
  4. Step 4: Simplify right side
    12,626.59x = 145,321,524.66
  5. Step 5: Solve for x
    x = 145,321,524.66/12,626.59
  6. Step 6: Final answer
    x = 11,509.17

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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.