Home / 15,548.88-21,457.77-8,475.31

Finding the Fourth Proportional to 15,548.88, 21,457.77 and 8,475.31

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Solution

The fourth proportional to 15,548.88, 21,457.77 and 8,475.31 is: 11,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.88 : 21,457.77 = 8,475.31 : x
  2. Step 2: Convert to fraction form
    15,548.88/21,457.77 = 8,475.31/x
  3. Step 3: Cross multiply
    15,548.88x = 21,457.77 × 8,475.31
  4. Step 4: Simplify right side
    15,548.88x = 181,861,252.66
  5. Step 5: Solve for x
    x = 181,861,252.66/15,548.88
  6. Step 6: Final answer
    x = 11,696.10

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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.