Home / 14,470.04-19,969.21-8,419.80

Finding the Fourth Proportional to 14,470.04, 19,969.21 and 8,419.80

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Solution

The fourth proportional to 14,470.04, 19,969.21 and 8,419.80 is: 11,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,470.04 : 19,969.21 = 8,419.80 : x
  2. Step 2: Convert to fraction form
    14,470.04/19,969.21 = 8,419.80/x
  3. Step 3: Cross multiply
    14,470.04x = 19,969.21 × 8,419.80
  4. Step 4: Simplify right side
    14,470.04x = 168,136,703.76
  5. Step 5: Solve for x
    x = 168,136,703.76/14,470.04
  6. Step 6: Final answer
    x = 11,619.64

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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.