Home / 14,280.76-21,434.97-6,890.41

Finding the Fourth Proportional to 14,280.76, 21,434.97 and 6,890.41

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Solution

The fourth proportional to 14,280.76, 21,434.97 and 6,890.41 is: 10,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.76 : 21,434.97 = 6,890.41 : x
  2. Step 2: Convert to fraction form
    14,280.76/21,434.97 = 6,890.41/x
  3. Step 3: Cross multiply
    14,280.76x = 21,434.97 × 6,890.41
  4. Step 4: Simplify right side
    14,280.76x = 147,695,624.46
  5. Step 5: Solve for x
    x = 147,695,624.46/14,280.76
  6. Step 6: Final answer
    x = 10,342.28

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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.