Home / 10,618.02-15,929.04-5,071.80

Finding the Fourth Proportional to 10,618.02, 15,929.04 and 5,071.80

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Solution

The fourth proportional to 10,618.02, 15,929.04 and 5,071.80 is: 7,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.02 : 15,929.04 = 5,071.80 : x
  2. Step 2: Convert to fraction form
    10,618.02/15,929.04 = 5,071.80/x
  3. Step 3: Cross multiply
    10,618.02x = 15,929.04 × 5,071.80
  4. Step 4: Simplify right side
    10,618.02x = 80,788,905.07
  5. Step 5: Solve for x
    x = 80,788,905.07/10,618.02
  6. Step 6: Final answer
    x = 7,608.66

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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.