Home / 13,075.74-18,045.18-8,040.24

Finding the Fourth Proportional to 13,075.74, 18,045.18 and 8,040.24

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Solution

The fourth proportional to 13,075.74, 18,045.18 and 8,040.24 is: 11,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.74 : 18,045.18 = 8,040.24 : x
  2. Step 2: Convert to fraction form
    13,075.74/18,045.18 = 8,040.24/x
  3. Step 3: Cross multiply
    13,075.74x = 18,045.18 × 8,040.24
  4. Step 4: Simplify right side
    13,075.74x = 145,087,578.04
  5. Step 5: Solve for x
    x = 145,087,578.04/13,075.74
  6. Step 6: Final answer
    x = 11,095.94

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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.