Home / 14,182.40-21,223.20-12,353.60

Finding the Fourth Proportional to 14,182.40, 21,223.20 and 12,353.60

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Solution

The fourth proportional to 14,182.40, 21,223.20 and 12,353.60 is: 18,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,182.40 : 21,223.20 = 12,353.60 : x
  2. Step 2: Convert to fraction form
    14,182.40/21,223.20 = 12,353.60/x
  3. Step 3: Cross multiply
    14,182.40x = 21,223.20 × 12,353.60
  4. Step 4: Simplify right side
    14,182.40x = 262,182,923.52
  5. Step 5: Solve for x
    x = 262,182,923.52/14,182.40
  6. Step 6: Final answer
    x = 18,486.50

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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.