Home / 14,686.56-21,905.87-12,470.40

Finding the Fourth Proportional to 14,686.56, 21,905.87 and 12,470.40

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Solution

The fourth proportional to 14,686.56, 21,905.87 and 12,470.40 is: 18,600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.56 : 21,905.87 = 12,470.40 : x
  2. Step 2: Convert to fraction form
    14,686.56/21,905.87 = 12,470.40/x
  3. Step 3: Cross multiply
    14,686.56x = 21,905.87 × 12,470.40
  4. Step 4: Simplify right side
    14,686.56x = 273,174,898.90
  5. Step 5: Solve for x
    x = 273,174,898.90/14,686.56
  6. Step 6: Final answer
    x = 18,600.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.