Home / 10,722.09-16,085.70-4,877.40

Finding the Fourth Proportional to 10,722.09, 16,085.70 and 4,877.40

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Solution

The fourth proportional to 10,722.09, 16,085.70 and 4,877.40 is: 7,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.09 : 16,085.70 = 4,877.40 : x
  2. Step 2: Convert to fraction form
    10,722.09/16,085.70 = 4,877.40/x
  3. Step 3: Cross multiply
    10,722.09x = 16,085.70 × 4,877.40
  4. Step 4: Simplify right side
    10,722.09x = 78,456,393.18
  5. Step 5: Solve for x
    x = 78,456,393.18/10,722.09
  6. Step 6: Final answer
    x = 7,317.27

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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.