Home / 10,722.24-16,070.40-4,870.80

Finding the Fourth Proportional to 10,722.24, 16,070.40 and 4,870.80

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Solution

The fourth proportional to 10,722.24, 16,070.40 and 4,870.80 is: 7,300.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.24 : 16,070.40 = 4,870.80 : x
  2. Step 2: Convert to fraction form
    10,722.24/16,070.40 = 4,870.80/x
  3. Step 3: Cross multiply
    10,722.24x = 16,070.40 × 4,870.80
  4. Step 4: Simplify right side
    10,722.24x = 78,275,704.32
  5. Step 5: Solve for x
    x = 78,275,704.32/10,722.24
  6. Step 6: Final answer
    x = 7,300.31

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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.