Home / 13,642.22-18,828.59-10,075.71

Finding the Fourth Proportional to 13,642.22, 18,828.59 and 10,075.71

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Solution

The fourth proportional to 13,642.22, 18,828.59 and 10,075.71 is: 13,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.22 : 18,828.59 = 10,075.71 : x
  2. Step 2: Convert to fraction form
    13,642.22/18,828.59 = 10,075.71/x
  3. Step 3: Cross multiply
    13,642.22x = 18,828.59 × 10,075.71
  4. Step 4: Simplify right side
    13,642.22x = 189,711,326.87
  5. Step 5: Solve for x
    x = 189,711,326.87/13,642.22
  6. Step 6: Final answer
    x = 13,906.19

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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.