Home / 10,656.99-15,985.49-4,812.03

Finding the Fourth Proportional to 10,656.99, 15,985.49 and 4,812.03

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Solution

The fourth proportional to 10,656.99, 15,985.49 and 4,812.03 is: 7,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.99 : 15,985.49 = 4,812.03 : x
  2. Step 2: Convert to fraction form
    10,656.99/15,985.49 = 4,812.03/x
  3. Step 3: Cross multiply
    10,656.99x = 15,985.49 × 4,812.03
  4. Step 4: Simplify right side
    10,656.99x = 76,922,633.38
  5. Step 5: Solve for x
    x = 76,922,633.38/10,656.99
  6. Step 6: Final answer
    x = 7,218.05

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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.