Home / 19,154.37-28,683.36-12,113.04

Finding the Fourth Proportional to 19,154.37, 28,683.36 and 12,113.04

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Solution

The fourth proportional to 19,154.37, 28,683.36 and 12,113.04 is: 18,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.37 : 28,683.36 = 12,113.04 : x
  2. Step 2: Convert to fraction form
    19,154.37/28,683.36 = 12,113.04/x
  3. Step 3: Cross multiply
    19,154.37x = 28,683.36 × 12,113.04
  4. Step 4: Simplify right side
    19,154.37x = 347,442,687.01
  5. Step 5: Solve for x
    x = 347,442,687.01/19,154.37
  6. Step 6: Final answer
    x = 18,139.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.