Home / 26,018.28-39,011.85-12,664.98

Finding the Fourth Proportional to 26,018.28, 39,011.85 and 12,664.98

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Solution

The fourth proportional to 26,018.28, 39,011.85 and 12,664.98 is: 18,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,018.28 : 39,011.85 = 12,664.98 : x
  2. Step 2: Convert to fraction form
    26,018.28/39,011.85 = 12,664.98/x
  3. Step 3: Cross multiply
    26,018.28x = 39,011.85 × 12,664.98
  4. Step 4: Simplify right side
    26,018.28x = 494,084,300.01
  5. Step 5: Solve for x
    x = 494,084,300.01/26,018.28
  6. Step 6: Final answer
    x = 18,989.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.