Home / 12,123.27-16,730.09-7,089.07

Finding the Fourth Proportional to 12,123.27, 16,730.09 and 7,089.07

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Solution

The fourth proportional to 12,123.27, 16,730.09 and 7,089.07 is: 9,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.27 : 16,730.09 = 7,089.07 : x
  2. Step 2: Convert to fraction form
    12,123.27/16,730.09 = 7,089.07/x
  3. Step 3: Cross multiply
    12,123.27x = 16,730.09 × 7,089.07
  4. Step 4: Simplify right side
    12,123.27x = 118,600,799.67
  5. Step 5: Solve for x
    x = 118,600,799.67/12,123.27
  6. Step 6: Final answer
    x = 9,782.91

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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.