Home / 7,451.63-11,172.28-6,289.18

Finding the Fourth Proportional to 7,451.63, 11,172.28 and 6,289.18

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Solution

The fourth proportional to 7,451.63, 11,172.28 and 6,289.18 is: 9,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.63 : 11,172.28 = 6,289.18 : x
  2. Step 2: Convert to fraction form
    7,451.63/11,172.28 = 6,289.18/x
  3. Step 3: Cross multiply
    7,451.63x = 11,172.28 × 6,289.18
  4. Step 4: Simplify right side
    7,451.63x = 70,264,448.07
  5. Step 5: Solve for x
    x = 70,264,448.07/7,451.63
  6. Step 6: Final answer
    x = 9,429.41

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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.