Home / 7,639.56-10,536.74-6,579.18

Finding the Fourth Proportional to 7,639.56, 10,536.74 and 6,579.18

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Solution

The fourth proportional to 7,639.56, 10,536.74 and 6,579.18 is: 9,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.56 : 10,536.74 = 6,579.18 : x
  2. Step 2: Convert to fraction form
    7,639.56/10,536.74 = 6,579.18/x
  3. Step 3: Cross multiply
    7,639.56x = 10,536.74 × 6,579.18
  4. Step 4: Simplify right side
    7,639.56x = 69,323,109.07
  5. Step 5: Solve for x
    x = 69,323,109.07/7,639.56
  6. Step 6: Final answer
    x = 9,074.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.