Home / 15,113.07-20,844.72-9,137.09

Finding the Fourth Proportional to 15,113.07, 20,844.72 and 9,137.09

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Solution

The fourth proportional to 15,113.07, 20,844.72 and 9,137.09 is: 12,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.07 : 20,844.72 = 9,137.09 : x
  2. Step 2: Convert to fraction form
    15,113.07/20,844.72 = 9,137.09/x
  3. Step 3: Cross multiply
    15,113.07x = 20,844.72 × 9,137.09
  4. Step 4: Simplify right side
    15,113.07x = 190,460,134.78
  5. Step 5: Solve for x
    x = 190,460,134.78/15,113.07
  6. Step 6: Final answer
    x = 12,602.35

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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.