Home / 14,878.36-20,516.80-10,400.48

Finding the Fourth Proportional to 14,878.36, 20,516.80 and 10,400.48

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Solution

The fourth proportional to 14,878.36, 20,516.80 and 10,400.48 is: 14,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.36 : 20,516.80 = 10,400.48 : x
  2. Step 2: Convert to fraction form
    14,878.36/20,516.80 = 10,400.48/x
  3. Step 3: Cross multiply
    14,878.36x = 20,516.80 × 10,400.48
  4. Step 4: Simplify right side
    14,878.36x = 213,384,568.06
  5. Step 5: Solve for x
    x = 213,384,568.06/14,878.36
  6. Step 6: Final answer
    x = 14,341.94

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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.