Home / 15,390.40-23,085.44-4,860.32

Finding the Fourth Proportional to 15,390.40, 23,085.44 and 4,860.32

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Solution

The fourth proportional to 15,390.40, 23,085.44 and 4,860.32 is: 7,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.40 : 23,085.44 = 4,860.32 : x
  2. Step 2: Convert to fraction form
    15,390.40/23,085.44 = 4,860.32/x
  3. Step 3: Cross multiply
    15,390.40x = 23,085.44 × 4,860.32
  4. Step 4: Simplify right side
    15,390.40x = 112,202,625.74
  5. Step 5: Solve for x
    x = 112,202,625.74/15,390.40
  6. Step 6: Final answer
    x = 7,290.43

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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.