Home / 10,873.02-16,307.10-5,320.80

Finding the Fourth Proportional to 10,873.02, 16,307.10 and 5,320.80

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Solution

The fourth proportional to 10,873.02, 16,307.10 and 5,320.80 is: 7,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,873.02 : 16,307.10 = 5,320.80 : x
  2. Step 2: Convert to fraction form
    10,873.02/16,307.10 = 5,320.80/x
  3. Step 3: Cross multiply
    10,873.02x = 16,307.10 × 5,320.80
  4. Step 4: Simplify right side
    10,873.02x = 86,766,817.68
  5. Step 5: Solve for x
    x = 86,766,817.68/10,873.02
  6. Step 6: Final answer
    x = 7,980.01

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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.