Home / 17,720.04-26,570.75-7,855.05

Finding the Fourth Proportional to 17,720.04, 26,570.75 and 7,855.05

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Solution

The fourth proportional to 17,720.04, 26,570.75 and 7,855.05 is: 11,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.04 : 26,570.75 = 7,855.05 : x
  2. Step 2: Convert to fraction form
    17,720.04/26,570.75 = 7,855.05/x
  3. Step 3: Cross multiply
    17,720.04x = 26,570.75 × 7,855.05
  4. Step 4: Simplify right side
    17,720.04x = 208,714,530.51
  5. Step 5: Solve for x
    x = 208,714,530.51/17,720.04
  6. Step 6: Final answer
    x = 11,778.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.