Home / 13,075.32-19,580.69-6,840.57

Finding the Fourth Proportional to 13,075.32, 19,580.69 and 6,840.57

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Solution

The fourth proportional to 13,075.32, 19,580.69 and 6,840.57 is: 10,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.32 : 19,580.69 = 6,840.57 : x
  2. Step 2: Convert to fraction form
    13,075.32/19,580.69 = 6,840.57/x
  3. Step 3: Cross multiply
    13,075.32x = 19,580.69 × 6,840.57
  4. Step 4: Simplify right side
    13,075.32x = 133,943,046.39
  5. Step 5: Solve for x
    x = 133,943,046.39/13,075.32
  6. Step 6: Final answer
    x = 10,243.96

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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.