Home / 14,835.64-20,489.98-10,111.72

Finding the Fourth Proportional to 14,835.64, 20,489.98 and 10,111.72

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Solution

The fourth proportional to 14,835.64, 20,489.98 and 10,111.72 is: 13,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,835.64 : 20,489.98 = 10,111.72 : x
  2. Step 2: Convert to fraction form
    14,835.64/20,489.98 = 10,111.72/x
  3. Step 3: Cross multiply
    14,835.64x = 20,489.98 × 10,111.72
  4. Step 4: Simplify right side
    14,835.64x = 207,188,940.57
  5. Step 5: Solve for x
    x = 207,188,940.57/14,835.64
  6. Step 6: Final answer
    x = 13,965.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.