Home / 18,946.34-26,125.44-12,900.50

Finding the Fourth Proportional to 18,946.34, 26,125.44 and 12,900.50

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Solution

The fourth proportional to 18,946.34, 26,125.44 and 12,900.50 is: 17,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.34 : 26,125.44 = 12,900.50 : x
  2. Step 2: Convert to fraction form
    18,946.34/26,125.44 = 12,900.50/x
  3. Step 3: Cross multiply
    18,946.34x = 26,125.44 × 12,900.50
  4. Step 4: Simplify right side
    18,946.34x = 337,031,238.72
  5. Step 5: Solve for x
    x = 337,031,238.72/18,946.34
  6. Step 6: Final answer
    x = 17,788.73

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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.