Home / 12,923.90-17,835.33-7,888.22

Finding the Fourth Proportional to 12,923.90, 17,835.33 and 7,888.22

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Solution

The fourth proportional to 12,923.90, 17,835.33 and 7,888.22 is: 10,885.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.90 : 17,835.33 = 7,888.22 : x
  2. Step 2: Convert to fraction form
    12,923.90/17,835.33 = 7,888.22/x
  3. Step 3: Cross multiply
    12,923.90x = 17,835.33 × 7,888.22
  4. Step 4: Simplify right side
    12,923.90x = 140,689,006.81
  5. Step 5: Solve for x
    x = 140,689,006.81/12,923.90
  6. Step 6: Final answer
    x = 10,885.96

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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.