Home / 18,988.04-28,484.33-7,902.22

Finding the Fourth Proportional to 18,988.04, 28,484.33 and 7,902.22

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Solution

The fourth proportional to 18,988.04, 28,484.33 and 7,902.22 is: 11,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.04 : 28,484.33 = 7,902.22 : x
  2. Step 2: Convert to fraction form
    18,988.04/28,484.33 = 7,902.22/x
  3. Step 3: Cross multiply
    18,988.04x = 28,484.33 × 7,902.22
  4. Step 4: Simplify right side
    18,988.04x = 225,089,331.49
  5. Step 5: Solve for x
    x = 225,089,331.49/18,988.04
  6. Step 6: Final answer
    x = 11,854.27

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Double scale
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Similar ratio
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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.