Home / 10,842.40-16,252.80-4,988.80

Finding the Fourth Proportional to 10,842.40, 16,252.80 and 4,988.80

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Solution

The fourth proportional to 10,842.40, 16,252.80 and 4,988.80 is: 7,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.40 : 16,252.80 = 4,988.80 : x
  2. Step 2: Convert to fraction form
    10,842.40/16,252.80 = 4,988.80/x
  3. Step 3: Cross multiply
    10,842.40x = 16,252.80 × 4,988.80
  4. Step 4: Simplify right side
    10,842.40x = 81,081,968.64
  5. Step 5: Solve for x
    x = 81,081,968.64/10,842.40
  6. Step 6: Final answer
    x = 7,478.23

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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.