Home / 14,006.40-21,009.60-8,476.80

Finding the Fourth Proportional to 14,006.40, 21,009.60 and 8,476.80

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Solution

The fourth proportional to 14,006.40, 21,009.60 and 8,476.80 is: 12,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.40 : 21,009.60 = 8,476.80 : x
  2. Step 2: Convert to fraction form
    14,006.40/21,009.60 = 8,476.80/x
  3. Step 3: Cross multiply
    14,006.40x = 21,009.60 × 8,476.80
  4. Step 4: Simplify right side
    14,006.40x = 178,094,177.28
  5. Step 5: Solve for x
    x = 178,094,177.28/14,006.40
  6. Step 6: Final answer
    x = 12,715.20

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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.