Home / 14,022.77-21,019.10-6,988.91

Finding the Fourth Proportional to 14,022.77, 21,019.10 and 6,988.91

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Solution

The fourth proportional to 14,022.77, 21,019.10 and 6,988.91 is: 10,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,022.77 : 21,019.10 = 6,988.91 : x
  2. Step 2: Convert to fraction form
    14,022.77/21,019.10 = 6,988.91/x
  3. Step 3: Cross multiply
    14,022.77x = 21,019.10 × 6,988.91
  4. Step 4: Simplify right side
    14,022.77x = 146,900,458.14
  5. Step 5: Solve for x
    x = 146,900,458.14/14,022.77
  6. Step 6: Final answer
    x = 10,475.86

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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.