Home / 15,106.70-20,847.51-8,392.94

Finding the Fourth Proportional to 15,106.70, 20,847.51 and 8,392.94

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Solution

The fourth proportional to 15,106.70, 20,847.51 and 8,392.94 is: 11,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.70 : 20,847.51 = 8,392.94 : x
  2. Step 2: Convert to fraction form
    15,106.70/20,847.51 = 8,392.94/x
  3. Step 3: Cross multiply
    15,106.70x = 20,847.51 × 8,392.94
  4. Step 4: Simplify right side
    15,106.70x = 174,971,796.34
  5. Step 5: Solve for x
    x = 174,971,796.34/15,106.70
  6. Step 6: Final answer
    x = 11,582.40

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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.