Home / 11,143.04-15,376.56-6,426.32

Finding the Fourth Proportional to 11,143.04, 15,376.56 and 6,426.32

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Solution

The fourth proportional to 11,143.04, 15,376.56 and 6,426.32 is: 8,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.04 : 15,376.56 = 6,426.32 : x
  2. Step 2: Convert to fraction form
    11,143.04/15,376.56 = 6,426.32/x
  3. Step 3: Cross multiply
    11,143.04x = 15,376.56 × 6,426.32
  4. Step 4: Simplify right side
    11,143.04x = 98,814,695.06
  5. Step 5: Solve for x
    x = 98,814,695.06/11,143.04
  6. Step 6: Final answer
    x = 8,867.84

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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.