Home / 11,397.84-15,729.81-6,363.05

Finding the Fourth Proportional to 11,397.84, 15,729.81 and 6,363.05

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Solution

The fourth proportional to 11,397.84, 15,729.81 and 6,363.05 is: 8,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.84 : 15,729.81 = 6,363.05 : x
  2. Step 2: Convert to fraction form
    11,397.84/15,729.81 = 6,363.05/x
  3. Step 3: Cross multiply
    11,397.84x = 15,729.81 × 6,363.05
  4. Step 4: Simplify right side
    11,397.84x = 100,089,567.52
  5. Step 5: Solve for x
    x = 100,089,567.52/11,397.84
  6. Step 6: Final answer
    x = 8,781.45

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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.