Home / 18,075.24-27,112.92-9,312.72

Finding the Fourth Proportional to 18,075.24, 27,112.92 and 9,312.72

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Solution

The fourth proportional to 18,075.24, 27,112.92 and 9,312.72 is: 13,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.24 : 27,112.92 = 9,312.72 : x
  2. Step 2: Convert to fraction form
    18,075.24/27,112.92 = 9,312.72/x
  3. Step 3: Cross multiply
    18,075.24x = 27,112.92 × 9,312.72
  4. Step 4: Simplify right side
    18,075.24x = 252,495,032.34
  5. Step 5: Solve for x
    x = 252,495,032.34/18,075.24
  6. Step 6: Final answer
    x = 13,969.11

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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.