Home / 8,718.64-12,033.60-5,364.28

Finding the Fourth Proportional to 8,718.64, 12,033.60 and 5,364.28

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Solution

The fourth proportional to 8,718.64, 12,033.60 and 5,364.28 is: 7,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.64 : 12,033.60 = 5,364.28 : x
  2. Step 2: Convert to fraction form
    8,718.64/12,033.60 = 5,364.28/x
  3. Step 3: Cross multiply
    8,718.64x = 12,033.60 × 5,364.28
  4. Step 4: Simplify right side
    8,718.64x = 64,551,599.81
  5. Step 5: Solve for x
    x = 64,551,599.81/8,718.64
  6. Step 6: Final answer
    x = 7,403.86

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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.