Home / 7,039.47-10,562.81-3,143.01

Finding the Fourth Proportional to 7,039.47, 10,562.81 and 3,143.01

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Solution

The fourth proportional to 7,039.47, 10,562.81 and 3,143.01 is: 4,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.47 : 10,562.81 = 3,143.01 : x
  2. Step 2: Convert to fraction form
    7,039.47/10,562.81 = 3,143.01/x
  3. Step 3: Cross multiply
    7,039.47x = 10,562.81 × 3,143.01
  4. Step 4: Simplify right side
    7,039.47x = 33,199,001.74
  5. Step 5: Solve for x
    x = 33,199,001.74/7,039.47
  6. Step 6: Final answer
    x = 4,716.12

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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.