Home / 15,643.80-23,465.70-5,255.55

Finding the Fourth Proportional to 15,643.80, 23,465.70 and 5,255.55

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Solution

The fourth proportional to 15,643.80, 23,465.70 and 5,255.55 is: 7,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.80 : 23,465.70 = 5,255.55 : x
  2. Step 2: Convert to fraction form
    15,643.80/23,465.70 = 5,255.55/x
  3. Step 3: Cross multiply
    15,643.80x = 23,465.70 × 5,255.55
  4. Step 4: Simplify right side
    15,643.80x = 123,325,159.64
  5. Step 5: Solve for x
    x = 123,325,159.64/15,643.80
  6. Step 6: Final answer
    x = 7,883.33

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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.