Home / 13,055.03-18,015.95-7,086.69

Finding the Fourth Proportional to 13,055.03, 18,015.95 and 7,086.69

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Solution

The fourth proportional to 13,055.03, 18,015.95 and 7,086.69 is: 9,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.03 : 18,015.95 = 7,086.69 : x
  2. Step 2: Convert to fraction form
    13,055.03/18,015.95 = 7,086.69/x
  3. Step 3: Cross multiply
    13,055.03x = 18,015.95 × 7,086.69
  4. Step 4: Simplify right side
    13,055.03x = 127,673,452.71
  5. Step 5: Solve for x
    x = 127,673,452.71/13,055.03
  6. Step 6: Final answer
    x = 9,779.64

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Half scale
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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.