Home / 15,106.28-20,846.06-8,392.32

Finding the Fourth Proportional to 15,106.28, 20,846.06 and 8,392.32

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Solution

The fourth proportional to 15,106.28, 20,846.06 and 8,392.32 is: 11,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.28 : 20,846.06 = 8,392.32 : x
  2. Step 2: Convert to fraction form
    15,106.28/20,846.06 = 8,392.32/x
  3. Step 3: Cross multiply
    15,106.28x = 20,846.06 × 8,392.32
  4. Step 4: Simplify right side
    15,106.28x = 174,946,806.26
  5. Step 5: Solve for x
    x = 174,946,806.26/15,106.28
  6. Step 6: Final answer
    x = 11,581.06

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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.