Home / 12,011.55-17,938.47-10,237.65

Finding the Fourth Proportional to 12,011.55, 17,938.47 and 10,237.65

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Solution

The fourth proportional to 12,011.55, 17,938.47 and 10,237.65 is: 15,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.55 : 17,938.47 = 10,237.65 : x
  2. Step 2: Convert to fraction form
    12,011.55/17,938.47 = 10,237.65/x
  3. Step 3: Cross multiply
    12,011.55x = 17,938.47 × 10,237.65
  4. Step 4: Simplify right side
    12,011.55x = 183,647,777.40
  5. Step 5: Solve for x
    x = 183,647,777.40/12,011.55
  6. Step 6: Final answer
    x = 15,289.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.