Home / 10,225.77-15,328.31-3,981.89

Finding the Fourth Proportional to 10,225.77, 15,328.31 and 3,981.89

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Solution

The fourth proportional to 10,225.77, 15,328.31 and 3,981.89 is: 5,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,225.77 : 15,328.31 = 3,981.89 : x
  2. Step 2: Convert to fraction form
    10,225.77/15,328.31 = 3,981.89/x
  3. Step 3: Cross multiply
    10,225.77x = 15,328.31 × 3,981.89
  4. Step 4: Simplify right side
    10,225.77x = 61,035,547.75
  5. Step 5: Solve for x
    x = 61,035,547.75/10,225.77
  6. Step 6: Final answer
    x = 5,968.80

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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.