Home / 13,479.67-18,600.59-7,816.25

Finding the Fourth Proportional to 13,479.67, 18,600.59 and 7,816.25

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Solution

The fourth proportional to 13,479.67, 18,600.59 and 7,816.25 is: 10,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.67 : 18,600.59 = 7,816.25 : x
  2. Step 2: Convert to fraction form
    13,479.67/18,600.59 = 7,816.25/x
  3. Step 3: Cross multiply
    13,479.67x = 18,600.59 × 7,816.25
  4. Step 4: Simplify right side
    13,479.67x = 145,386,779.03
  5. Step 5: Solve for x
    x = 145,386,779.03/13,479.67
  6. Step 6: Final answer
    x = 10,785.64

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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.