Home / 18,430.19-27,645.28-6,118.19

Finding the Fourth Proportional to 18,430.19, 27,645.28 and 6,118.19

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Solution

The fourth proportional to 18,430.19, 27,645.28 and 6,118.19 is: 9,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.19 : 27,645.28 = 6,118.19 : x
  2. Step 2: Convert to fraction form
    18,430.19/27,645.28 = 6,118.19/x
  3. Step 3: Cross multiply
    18,430.19x = 27,645.28 × 6,118.19
  4. Step 4: Simplify right side
    18,430.19x = 169,139,075.64
  5. Step 5: Solve for x
    x = 169,139,075.64/18,430.19
  6. Step 6: Final answer
    x = 9,177.28

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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.