Home / 18,237.10-27,347.90-7,142.03

Finding the Fourth Proportional to 18,237.10, 27,347.90 and 7,142.03

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Solution

The fourth proportional to 18,237.10, 27,347.90 and 7,142.03 is: 10,710.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.10 : 27,347.90 = 7,142.03 : x
  2. Step 2: Convert to fraction form
    18,237.10/27,347.90 = 7,142.03/x
  3. Step 3: Cross multiply
    18,237.10x = 27,347.90 × 7,142.03
  4. Step 4: Simplify right side
    18,237.10x = 195,319,403.35
  5. Step 5: Solve for x
    x = 195,319,403.35/18,237.10
  6. Step 6: Final answer
    x = 10,710.00

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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.