Home / 13,642.07-18,801.59-10,099.13

Finding the Fourth Proportional to 13,642.07, 18,801.59 and 10,099.13

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Solution

The fourth proportional to 13,642.07, 18,801.59 and 10,099.13 is: 13,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.07 : 18,801.59 = 10,099.13 : x
  2. Step 2: Convert to fraction form
    13,642.07/18,801.59 = 10,099.13/x
  3. Step 3: Cross multiply
    13,642.07x = 18,801.59 × 10,099.13
  4. Step 4: Simplify right side
    13,642.07x = 189,879,557.11
  5. Step 5: Solve for x
    x = 189,879,557.11/13,642.07
  6. Step 6: Final answer
    x = 13,918.68

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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.