Home / 13,535.12-18,677.08-9,289.84

Finding the Fourth Proportional to 13,535.12, 18,677.08 and 9,289.84

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Solution

The fourth proportional to 13,535.12, 18,677.08 and 9,289.84 is: 12,819.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.12 : 18,677.08 = 9,289.84 : x
  2. Step 2: Convert to fraction form
    13,535.12/18,677.08 = 9,289.84/x
  3. Step 3: Cross multiply
    13,535.12x = 18,677.08 × 9,289.84
  4. Step 4: Simplify right side
    13,535.12x = 173,507,084.87
  5. Step 5: Solve for x
    x = 173,507,084.87/13,535.12
  6. Step 6: Final answer
    x = 12,819.03

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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.