Home / 12,485.58-18,741.24-9,742.29

Finding the Fourth Proportional to 12,485.58, 18,741.24 and 9,742.29

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Solution

The fourth proportional to 12,485.58, 18,741.24 and 9,742.29 is: 14,623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.58 : 18,741.24 = 9,742.29 : x
  2. Step 2: Convert to fraction form
    12,485.58/18,741.24 = 9,742.29/x
  3. Step 3: Cross multiply
    12,485.58x = 18,741.24 × 9,742.29
  4. Step 4: Simplify right side
    12,485.58x = 182,582,595.04
  5. Step 5: Solve for x
    x = 182,582,595.04/12,485.58
  6. Step 6: Final answer
    x = 14,623.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.