Home / 13,088.28-18,056.88-8,364.36

Finding the Fourth Proportional to 13,088.28, 18,056.88 and 8,364.36

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Solution

The fourth proportional to 13,088.28, 18,056.88 and 8,364.36 is: 11,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.28 : 18,056.88 = 8,364.36 : x
  2. Step 2: Convert to fraction form
    13,088.28/18,056.88 = 8,364.36/x
  3. Step 3: Cross multiply
    13,088.28x = 18,056.88 × 8,364.36
  4. Step 4: Simplify right side
    13,088.28x = 151,034,244.80
  5. Step 5: Solve for x
    x = 151,034,244.80/13,088.28
  6. Step 6: Final answer
    x = 11,539.66

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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.