Home / 15,539.77-21,444.86-8,466.20

Finding the Fourth Proportional to 15,539.77, 21,444.86 and 8,466.20

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Solution

The fourth proportional to 15,539.77, 21,444.86 and 8,466.20 is: 11,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.77 : 21,444.86 = 8,466.20 : x
  2. Step 2: Convert to fraction form
    15,539.77/21,444.86 = 8,466.20/x
  3. Step 3: Cross multiply
    15,539.77x = 21,444.86 × 8,466.20
  4. Step 4: Simplify right side
    15,539.77x = 181,556,473.73
  5. Step 5: Solve for x
    x = 181,556,473.73/15,539.77
  6. Step 6: Final answer
    x = 11,683.34

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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.