Home / 15,548.37-21,456.81-8,474.81

Finding the Fourth Proportional to 15,548.37, 21,456.81 and 8,474.81

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Solution

The fourth proportional to 15,548.37, 21,456.81 and 8,474.81 is: 11,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.37 : 21,456.81 = 8,474.81 : x
  2. Step 2: Convert to fraction form
    15,548.37/21,456.81 = 8,474.81/x
  3. Step 3: Cross multiply
    15,548.37x = 21,456.81 × 8,474.81
  4. Step 4: Simplify right side
    15,548.37x = 181,842,280.67
  5. Step 5: Solve for x
    x = 181,842,280.67/15,548.37
  6. Step 6: Final answer
    x = 11,695.26

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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.