Home / 12,618.02-18,926.63-5,220.29

Finding the Fourth Proportional to 12,618.02, 18,926.63 and 5,220.29

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Solution

The fourth proportional to 12,618.02, 18,926.63 and 5,220.29 is: 7,830.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.02 : 18,926.63 = 5,220.29 : x
  2. Step 2: Convert to fraction form
    12,618.02/18,926.63 = 5,220.29/x
  3. Step 3: Cross multiply
    12,618.02x = 18,926.63 × 5,220.29
  4. Step 4: Simplify right side
    12,618.02x = 98,802,518.54
  5. Step 5: Solve for x
    x = 98,802,518.54/12,618.02
  6. Step 6: Final answer
    x = 7,830.27

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1.5x scale

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.