Home / 14,018.18-21,029.49-5,253.78

Finding the Fourth Proportional to 14,018.18, 21,029.49 and 5,253.78

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Solution

The fourth proportional to 14,018.18, 21,029.49 and 5,253.78 is: 7,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.18 : 21,029.49 = 5,253.78 : x
  2. Step 2: Convert to fraction form
    14,018.18/21,029.49 = 5,253.78/x
  3. Step 3: Cross multiply
    14,018.18x = 21,029.49 × 5,253.78
  4. Step 4: Simplify right side
    14,018.18x = 110,484,313.97
  5. Step 5: Solve for x
    x = 110,484,313.97/14,018.18
  6. Step 6: Final answer
    x = 7,881.50

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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.