Home / 11,117.15-15,341.64-6,643.52

Finding the Fourth Proportional to 11,117.15, 15,341.64 and 6,643.52

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Solution

The fourth proportional to 11,117.15, 15,341.64 and 6,643.52 is: 9,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.15 : 15,341.64 = 6,643.52 : x
  2. Step 2: Convert to fraction form
    11,117.15/15,341.64 = 6,643.52/x
  3. Step 3: Cross multiply
    11,117.15x = 15,341.64 × 6,643.52
  4. Step 4: Simplify right side
    11,117.15x = 101,922,415.46
  5. Step 5: Solve for x
    x = 101,922,415.46/11,117.15
  6. Step 6: Final answer
    x = 9,168.04

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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.