Home / 13,269,123.90-18,304,368-9,131,972.51

Finding the Fourth Proportional to 13,269,123.90, 18,304,368 and 9,131,972.51

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Solution

The fourth proportional to 13,269,123.90, 18,304,368 and 9,131,972.51 is: 12,597,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,123.90 : 18,304,368 = 9,131,972.51 : x
  2. Step 2: Convert to fraction form
    13,269,123.90/18,304,368 = 9,131,972.51/x
  3. Step 3: Cross multiply
    13,269,123.90x = 18,304,368 × 9,131,972.51
  4. Step 4: Simplify right side
    13,269,123.90x = 167,154,985,388,923.69
  5. Step 5: Solve for x
    x = 167,154,985,388,923.69/13,269,123.90
  6. Step 6: Final answer
    x = 12,597,288.76

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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.