Home / 14,110.36-21,154.74-6,990.28

Finding the Fourth Proportional to 14,110.36, 21,154.74 and 6,990.28

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Solution

The fourth proportional to 14,110.36, 21,154.74 and 6,990.28 is: 10,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,110.36 : 21,154.74 = 6,990.28 : x
  2. Step 2: Convert to fraction form
    14,110.36/21,154.74 = 6,990.28/x
  3. Step 3: Cross multiply
    14,110.36x = 21,154.74 × 6,990.28
  4. Step 4: Simplify right side
    14,110.36x = 147,877,555.93
  5. Step 5: Solve for x
    x = 147,877,555.93/14,110.36
  6. Step 6: Final answer
    x = 10,480.07

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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.