Home / 18,210.45-25,128.53-10,252.51

Finding the Fourth Proportional to 18,210.45, 25,128.53 and 10,252.51

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Solution

The fourth proportional to 18,210.45, 25,128.53 and 10,252.51 is: 14,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.45 : 25,128.53 = 10,252.51 : x
  2. Step 2: Convert to fraction form
    18,210.45/25,128.53 = 10,252.51/x
  3. Step 3: Cross multiply
    18,210.45x = 25,128.53 × 10,252.51
  4. Step 4: Simplify right side
    18,210.45x = 257,630,429.47
  5. Step 5: Solve for x
    x = 257,630,429.47/18,210.45
  6. Step 6: Final answer
    x = 14,147.39

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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.