Home / 14,908.61-20,561.56-10,120.68

Finding the Fourth Proportional to 14,908.61, 20,561.56 and 10,120.68

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Solution

The fourth proportional to 14,908.61, 20,561.56 and 10,120.68 is: 13,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,908.61 : 20,561.56 = 10,120.68 : x
  2. Step 2: Convert to fraction form
    14,908.61/20,561.56 = 10,120.68/x
  3. Step 3: Cross multiply
    14,908.61x = 20,561.56 × 10,120.68
  4. Step 4: Simplify right side
    14,908.61x = 208,096,969.06
  5. Step 5: Solve for x
    x = 208,096,969.06/14,908.61
  6. Step 6: Final answer
    x = 13,958.17

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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.