Home / 18,495.90-25,516.49-11,323.11

Finding the Fourth Proportional to 18,495.90, 25,516.49 and 11,323.11

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Solution

The fourth proportional to 18,495.90, 25,516.49 and 11,323.11 is: 15,621.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.90 : 25,516.49 = 11,323.11 : x
  2. Step 2: Convert to fraction form
    18,495.90/25,516.49 = 11,323.11/x
  3. Step 3: Cross multiply
    18,495.90x = 25,516.49 × 11,323.11
  4. Step 4: Simplify right side
    18,495.90x = 288,925,966.47
  5. Step 5: Solve for x
    x = 288,925,966.47/18,495.90
  6. Step 6: Final answer
    x = 15,621.08

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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.