Home / 14,008.50-21,018.78-5,242.32

Finding the Fourth Proportional to 14,008.50, 21,018.78 and 5,242.32

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Solution

The fourth proportional to 14,008.50, 21,018.78 and 5,242.32 is: 7,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.50 : 21,018.78 = 5,242.32 : x
  2. Step 2: Convert to fraction form
    14,008.50/21,018.78 = 5,242.32/x
  3. Step 3: Cross multiply
    14,008.50x = 21,018.78 × 5,242.32
  4. Step 4: Simplify right side
    14,008.50x = 110,187,170.77
  5. Step 5: Solve for x
    x = 110,187,170.77/14,008.50
  6. Step 6: Final answer
    x = 7,865.74

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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.