Home / 19,142.40-28,660.32-9,762.24

Finding the Fourth Proportional to 19,142.40, 28,660.32 and 9,762.24

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Solution

The fourth proportional to 19,142.40, 28,660.32 and 9,762.24 is: 14,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.40 : 28,660.32 = 9,762.24 : x
  2. Step 2: Convert to fraction form
    19,142.40/28,660.32 = 9,762.24/x
  3. Step 3: Cross multiply
    19,142.40x = 28,660.32 × 9,762.24
  4. Step 4: Simplify right side
    19,142.40x = 279,788,922.32
  5. Step 5: Solve for x
    x = 279,788,922.32/19,142.40
  6. Step 6: Final answer
    x = 14,616.19

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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.