Home / 14,011.38-21,011.13-6,988.68

Finding the Fourth Proportional to 14,011.38, 21,011.13 and 6,988.68

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Solution

The fourth proportional to 14,011.38, 21,011.13 and 6,988.68 is: 10,480.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.38 : 21,011.13 = 6,988.68 : x
  2. Step 2: Convert to fraction form
    14,011.38/21,011.13 = 6,988.68/x
  3. Step 3: Cross multiply
    14,011.38x = 21,011.13 × 6,988.68
  4. Step 4: Simplify right side
    14,011.38x = 146,840,064.01
  5. Step 5: Solve for x
    x = 146,840,064.01/14,011.38
  6. Step 6: Final answer
    x = 10,480.06

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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.