Home / 10,451.42-14,429.70-6,919.40

Finding the Fourth Proportional to 10,451.42, 14,429.70 and 6,919.40

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Solution

The fourth proportional to 10,451.42, 14,429.70 and 6,919.40 is: 9,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.42 : 14,429.70 = 6,919.40 : x
  2. Step 2: Convert to fraction form
    10,451.42/14,429.70 = 6,919.40/x
  3. Step 3: Cross multiply
    10,451.42x = 14,429.70 × 6,919.40
  4. Step 4: Simplify right side
    10,451.42x = 99,844,866.18
  5. Step 5: Solve for x
    x = 99,844,866.18/10,451.42
  6. Step 6: Final answer
    x = 9,553.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.