Home / 18,087.12-24,975.50-13,603.05

Finding the Fourth Proportional to 18,087.12, 24,975.50 and 13,603.05

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Solution

The fourth proportional to 18,087.12, 24,975.50 and 13,603.05 is: 18,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.12 : 24,975.50 = 13,603.05 : x
  2. Step 2: Convert to fraction form
    18,087.12/24,975.50 = 13,603.05/x
  3. Step 3: Cross multiply
    18,087.12x = 24,975.50 × 13,603.05
  4. Step 4: Simplify right side
    18,087.12x = 339,742,907.26
  5. Step 5: Solve for x
    x = 339,742,907.26/18,087.12
  6. Step 6: Final answer
    x = 18,783.69

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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.