Home / 18,802.07-28,203.15-4,762.10

Finding the Fourth Proportional to 18,802.07, 28,203.15 and 4,762.10

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Solution

The fourth proportional to 18,802.07, 28,203.15 and 4,762.10 is: 7,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.07 : 28,203.15 = 4,762.10 : x
  2. Step 2: Convert to fraction form
    18,802.07/28,203.15 = 4,762.10/x
  3. Step 3: Cross multiply
    18,802.07x = 28,203.15 × 4,762.10
  4. Step 4: Simplify right side
    18,802.07x = 134,306,300.05
  5. Step 5: Solve for x
    x = 134,306,300.05/18,802.07
  6. Step 6: Final answer
    x = 7,143.16

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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.