Home / 8,619.10-11,895.64-5,263.86

Finding the Fourth Proportional to 8,619.10, 11,895.64 and 5,263.86

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Solution

The fourth proportional to 8,619.10, 11,895.64 and 5,263.86 is: 7,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.10 : 11,895.64 = 5,263.86 : x
  2. Step 2: Convert to fraction form
    8,619.10/11,895.64 = 5,263.86/x
  3. Step 3: Cross multiply
    8,619.10x = 11,895.64 × 5,263.86
  4. Step 4: Simplify right side
    8,619.10x = 62,616,983.57
  5. Step 5: Solve for x
    x = 62,616,983.57/8,619.10
  6. Step 6: Final answer
    x = 7,264.91

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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.