Home / 15,539.95-21,445.78-8,466.76

Finding the Fourth Proportional to 15,539.95, 21,445.78 and 8,466.76

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Solution

The fourth proportional to 15,539.95, 21,445.78 and 8,466.76 is: 11,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.95 : 21,445.78 = 8,466.76 : x
  2. Step 2: Convert to fraction form
    15,539.95/21,445.78 = 8,466.76/x
  3. Step 3: Cross multiply
    15,539.95x = 21,445.78 × 8,466.76
  4. Step 4: Simplify right side
    15,539.95x = 181,576,272.27
  5. Step 5: Solve for x
    x = 181,576,272.27/15,539.95
  6. Step 6: Final answer
    x = 11,684.48

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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.