Home / 18,088.40-27,132.60-11,543.60

Finding the Fourth Proportional to 18,088.40, 27,132.60 and 11,543.60

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Solution

The fourth proportional to 18,088.40, 27,132.60 and 11,543.60 is: 17,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.40 : 27,132.60 = 11,543.60 : x
  2. Step 2: Convert to fraction form
    18,088.40/27,132.60 = 11,543.60/x
  3. Step 3: Cross multiply
    18,088.40x = 27,132.60 × 11,543.60
  4. Step 4: Simplify right side
    18,088.40x = 313,207,881.36
  5. Step 5: Solve for x
    x = 313,207,881.36/18,088.40
  6. Step 6: Final answer
    x = 17,315.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.