Home / 15,134.51-20,887.47-9,166.03

Finding the Fourth Proportional to 15,134.51, 20,887.47 and 9,166.03

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Solution

The fourth proportional to 15,134.51, 20,887.47 and 9,166.03 is: 12,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.51 : 20,887.47 = 9,166.03 : x
  2. Step 2: Convert to fraction form
    15,134.51/20,887.47 = 9,166.03/x
  3. Step 3: Cross multiply
    15,134.51x = 20,887.47 × 9,166.03
  4. Step 4: Simplify right side
    15,134.51x = 191,455,124.43
  5. Step 5: Solve for x
    x = 191,455,124.43/15,134.51
  6. Step 6: Final answer
    x = 12,650.23

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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.