Home / 13,470.87-20,215.53-4,705.80

Finding the Fourth Proportional to 13,470.87, 20,215.53 and 4,705.80

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Solution

The fourth proportional to 13,470.87, 20,215.53 and 4,705.80 is: 7,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.87 : 20,215.53 = 4,705.80 : x
  2. Step 2: Convert to fraction form
    13,470.87/20,215.53 = 4,705.80/x
  3. Step 3: Cross multiply
    13,470.87x = 20,215.53 × 4,705.80
  4. Step 4: Simplify right side
    13,470.87x = 95,130,241.07
  5. Step 5: Solve for x
    x = 95,130,241.07/13,470.87
  6. Step 6: Final answer
    x = 7,061.92

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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.