Home / 8,490.86-11,718.77-4,715.24

Finding the Fourth Proportional to 8,490.86, 11,718.77 and 4,715.24

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Solution

The fourth proportional to 8,490.86, 11,718.77 and 4,715.24 is: 6,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.86 : 11,718.77 = 4,715.24 : x
  2. Step 2: Convert to fraction form
    8,490.86/11,718.77 = 4,715.24/x
  3. Step 3: Cross multiply
    8,490.86x = 11,718.77 × 4,715.24
  4. Step 4: Simplify right side
    8,490.86x = 55,256,730.88
  5. Step 5: Solve for x
    x = 55,256,730.88/8,490.86
  6. Step 6: Final answer
    x = 6,507.79

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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.