Home / 19,302.61-26,633.82-12,128.37

Finding the Fourth Proportional to 19,302.61, 26,633.82 and 12,128.37

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Solution

The fourth proportional to 19,302.61, 26,633.82 and 12,128.37 is: 16,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.61 : 26,633.82 = 12,128.37 : x
  2. Step 2: Convert to fraction form
    19,302.61/26,633.82 = 12,128.37/x
  3. Step 3: Cross multiply
    19,302.61x = 26,633.82 × 12,128.37
  4. Step 4: Simplify right side
    19,302.61x = 323,024,823.47
  5. Step 5: Solve for x
    x = 323,024,823.47/19,302.61
  6. Step 6: Final answer
    x = 16,734.77

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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.