Home / 14,586.60-21,879.90-10,115.40

Finding the Fourth Proportional to 14,586.60, 21,879.90 and 10,115.40

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Solution

The fourth proportional to 14,586.60, 21,879.90 and 10,115.40 is: 15,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.60 : 21,879.90 = 10,115.40 : x
  2. Step 2: Convert to fraction form
    14,586.60/21,879.90 = 10,115.40/x
  3. Step 3: Cross multiply
    14,586.60x = 21,879.90 × 10,115.40
  4. Step 4: Simplify right side
    14,586.60x = 221,323,940.46
  5. Step 5: Solve for x
    x = 221,323,940.46/14,586.60
  6. Step 6: Final answer
    x = 15,173.10

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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.