Home / 18,491.60-25,518.32-10,108.08

Finding the Fourth Proportional to 18,491.60, 25,518.32 and 10,108.08

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Solution

The fourth proportional to 18,491.60, 25,518.32 and 10,108.08 is: 13,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.60 : 25,518.32 = 10,108.08 : x
  2. Step 2: Convert to fraction form
    18,491.60/25,518.32 = 10,108.08/x
  3. Step 3: Cross multiply
    18,491.60x = 25,518.32 × 10,108.08
  4. Step 4: Simplify right side
    18,491.60x = 257,941,220.03
  5. Step 5: Solve for x
    x = 257,941,220.03/18,491.60
  6. Step 6: Final answer
    x = 13,949.10

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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.