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Finding the Fourth Proportional to 14,170.80, 19,510.72 and 10,802.80

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Solution

The fourth proportional to 14,170.80, 19,510.72 and 10,802.80 is: 14,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.80 : 19,510.72 = 10,802.80 : x
  2. Step 2: Convert to fraction form
    14,170.80/19,510.72 = 10,802.80/x
  3. Step 3: Cross multiply
    14,170.80x = 19,510.72 × 10,802.80
  4. Step 4: Simplify right side
    14,170.80x = 210,770,406.02
  5. Step 5: Solve for x
    x = 210,770,406.02/14,170.80
  6. Step 6: Final answer
    x = 14,873.57

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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.