Home / 12,424.72-18,675.48-11,810.32

Finding the Fourth Proportional to 12,424.72, 18,675.48 and 11,810.32

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Solution

The fourth proportional to 12,424.72, 18,675.48 and 11,810.32 is: 17,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.72 : 18,675.48 = 11,810.32 : x
  2. Step 2: Convert to fraction form
    12,424.72/18,675.48 = 11,810.32/x
  3. Step 3: Cross multiply
    12,424.72x = 18,675.48 × 11,810.32
  4. Step 4: Simplify right side
    12,424.72x = 220,563,394.95
  5. Step 5: Solve for x
    x = 220,563,394.95/12,424.72
  6. Step 6: Final answer
    x = 17,751.98

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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.