Home / 13,669.65-18,875.30-8,641.98

Finding the Fourth Proportional to 13,669.65, 18,875.30 and 8,641.98

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Solution

The fourth proportional to 13,669.65, 18,875.30 and 8,641.98 is: 11,933.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.65 : 18,875.30 = 8,641.98 : x
  2. Step 2: Convert to fraction form
    13,669.65/18,875.30 = 8,641.98/x
  3. Step 3: Cross multiply
    13,669.65x = 18,875.30 × 8,641.98
  4. Step 4: Simplify right side
    13,669.65x = 163,119,965.09
  5. Step 5: Solve for x
    x = 163,119,965.09/13,669.65
  6. Step 6: Final answer
    x = 11,933.00

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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.