Home / 14,079.40-21,106.12-6,687.36

Finding the Fourth Proportional to 14,079.40, 21,106.12 and 6,687.36

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Solution

The fourth proportional to 14,079.40, 21,106.12 and 6,687.36 is: 10,024.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.40 : 21,106.12 = 6,687.36 : x
  2. Step 2: Convert to fraction form
    14,079.40/21,106.12 = 6,687.36/x
  3. Step 3: Cross multiply
    14,079.40x = 21,106.12 × 6,687.36
  4. Step 4: Simplify right side
    14,079.40x = 141,144,222.64
  5. Step 5: Solve for x
    x = 141,144,222.64/14,079.40
  6. Step 6: Final answer
    x = 10,024.87

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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.