Home / 15,782.80-23,645.40-9,619.60

Finding the Fourth Proportional to 15,782.80, 23,645.40 and 9,619.60

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Solution

The fourth proportional to 15,782.80, 23,645.40 and 9,619.60 is: 14,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.80 : 23,645.40 = 9,619.60 : x
  2. Step 2: Convert to fraction form
    15,782.80/23,645.40 = 9,619.60/x
  3. Step 3: Cross multiply
    15,782.80x = 23,645.40 × 9,619.60
  4. Step 4: Simplify right side
    15,782.80x = 227,459,289.84
  5. Step 5: Solve for x
    x = 227,459,289.84/15,782.80
  6. Step 6: Final answer
    x = 14,411.85

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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.