Home / 14,210.40-21,288.30-7,951.41

Finding the Fourth Proportional to 14,210.40, 21,288.30 and 7,951.41

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Solution

The fourth proportional to 14,210.40, 21,288.30 and 7,951.41 is: 11,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.40 : 21,288.30 = 7,951.41 : x
  2. Step 2: Convert to fraction form
    14,210.40/21,288.30 = 7,951.41/x
  3. Step 3: Cross multiply
    14,210.40x = 21,288.30 × 7,951.41
  4. Step 4: Simplify right side
    14,210.40x = 169,272,001.50
  5. Step 5: Solve for x
    x = 169,272,001.50/14,210.40
  6. Step 6: Final answer
    x = 11,911.84

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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.