Home / 15,442.02-21,309.97-8,368.45

Finding the Fourth Proportional to 15,442.02, 21,309.97 and 8,368.45

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Solution

The fourth proportional to 15,442.02, 21,309.97 and 8,368.45 is: 11,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.02 : 21,309.97 = 8,368.45 : x
  2. Step 2: Convert to fraction form
    15,442.02/21,309.97 = 8,368.45/x
  3. Step 3: Cross multiply
    15,442.02x = 21,309.97 × 8,368.45
  4. Step 4: Simplify right side
    15,442.02x = 178,331,418.45
  5. Step 5: Solve for x
    x = 178,331,418.45/15,442.02
  6. Step 6: Final answer
    x = 11,548.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.