Home / 13,669.65-20,482.89-9,954.78

Finding the Fourth Proportional to 13,669.65, 20,482.89 and 9,954.78

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Solution

The fourth proportional to 13,669.65, 20,482.89 and 9,954.78 is: 14,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.65 : 20,482.89 = 9,954.78 : x
  2. Step 2: Convert to fraction form
    13,669.65/20,482.89 = 9,954.78/x
  3. Step 3: Cross multiply
    13,669.65x = 20,482.89 × 9,954.78
  4. Step 4: Simplify right side
    13,669.65x = 203,902,663.71
  5. Step 5: Solve for x
    x = 203,902,663.71/13,669.65
  6. Step 6: Final answer
    x = 14,916.45

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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.