Home / 13,290.51-18,340.69-7,625.01

Finding the Fourth Proportional to 13,290.51, 18,340.69 and 7,625.01

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Solution

The fourth proportional to 13,290.51, 18,340.69 and 7,625.01 is: 10,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.51 : 18,340.69 = 7,625.01 : x
  2. Step 2: Convert to fraction form
    13,290.51/18,340.69 = 7,625.01/x
  3. Step 3: Cross multiply
    13,290.51x = 18,340.69 × 7,625.01
  4. Step 4: Simplify right side
    13,290.51x = 139,847,944.66
  5. Step 5: Solve for x
    x = 139,847,944.66/13,290.51
  6. Step 6: Final answer
    x = 10,522.39

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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.