Home / 15,148.05-20,904.26-8,433.51

Finding the Fourth Proportional to 15,148.05, 20,904.26 and 8,433.51

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Solution

The fourth proportional to 15,148.05, 20,904.26 and 8,433.51 is: 11,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.05 : 20,904.26 = 8,433.51 : x
  2. Step 2: Convert to fraction form
    15,148.05/20,904.26 = 8,433.51/x
  3. Step 3: Cross multiply
    15,148.05x = 20,904.26 × 8,433.51
  4. Step 4: Simplify right side
    15,148.05x = 176,296,218.13
  5. Step 5: Solve for x
    x = 176,296,218.13/15,148.05
  6. Step 6: Final answer
    x = 11,638.21

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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.