Home / 12,923.70-17,835.60-8,681.84

Finding the Fourth Proportional to 12,923.70, 17,835.60 and 8,681.84

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Solution

The fourth proportional to 12,923.70, 17,835.60 and 8,681.84 is: 11,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.70 : 17,835.60 = 8,681.84 : x
  2. Step 2: Convert to fraction form
    12,923.70/17,835.60 = 8,681.84/x
  3. Step 3: Cross multiply
    12,923.70x = 17,835.60 × 8,681.84
  4. Step 4: Simplify right side
    12,923.70x = 154,845,825.50
  5. Step 5: Solve for x
    x = 154,845,825.50/12,923.70
  6. Step 6: Final answer
    x = 11,981.54

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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.