Home / 18,585.02-25,647.51-10,087.21

Finding the Fourth Proportional to 18,585.02, 25,647.51 and 10,087.21

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Solution

The fourth proportional to 18,585.02, 25,647.51 and 10,087.21 is: 13,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.02 : 25,647.51 = 10,087.21 : x
  2. Step 2: Convert to fraction form
    18,585.02/25,647.51 = 10,087.21/x
  3. Step 3: Cross multiply
    18,585.02x = 25,647.51 × 10,087.21
  4. Step 4: Simplify right side
    18,585.02x = 258,711,755.23
  5. Step 5: Solve for x
    x = 258,711,755.23/18,585.02
  6. Step 6: Final answer
    x = 13,920.45

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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.