Home / 13,823.09-19,075.91-7,856.74

Finding the Fourth Proportional to 13,823.09, 19,075.91 and 7,856.74

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Solution

The fourth proportional to 13,823.09, 19,075.91 and 7,856.74 is: 10,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.09 : 19,075.91 = 7,856.74 : x
  2. Step 2: Convert to fraction form
    13,823.09/19,075.91 = 7,856.74/x
  3. Step 3: Cross multiply
    13,823.09x = 19,075.91 × 7,856.74
  4. Step 4: Simplify right side
    13,823.09x = 149,874,465.13
  5. Step 5: Solve for x
    x = 149,874,465.13/13,823.09
  6. Step 6: Final answer
    x = 10,842.33

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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.