Home / 13,482.87-20,209.70-6,900.03

Finding the Fourth Proportional to 13,482.87, 20,209.70 and 6,900.03

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Solution

The fourth proportional to 13,482.87, 20,209.70 and 6,900.03 is: 10,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.87 : 20,209.70 = 6,900.03 : x
  2. Step 2: Convert to fraction form
    13,482.87/20,209.70 = 6,900.03/x
  3. Step 3: Cross multiply
    13,482.87x = 20,209.70 × 6,900.03
  4. Step 4: Simplify right side
    13,482.87x = 139,447,501.79
  5. Step 5: Solve for x
    x = 139,447,501.79/13,482.87
  6. Step 6: Final answer
    x = 10,342.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.