Home / 15,038.40-22,557.60-12,122.40

Finding the Fourth Proportional to 15,038.40, 22,557.60 and 12,122.40

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Solution

The fourth proportional to 15,038.40, 22,557.60 and 12,122.40 is: 18,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.40 : 22,557.60 = 12,122.40 : x
  2. Step 2: Convert to fraction form
    15,038.40/22,557.60 = 12,122.40/x
  3. Step 3: Cross multiply
    15,038.40x = 22,557.60 × 12,122.40
  4. Step 4: Simplify right side
    15,038.40x = 273,452,250.24
  5. Step 5: Solve for x
    x = 273,452,250.24/15,038.40
  6. Step 6: Final answer
    x = 18,183.60

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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.