Home / 14,070.64-19,418.48-7,782.88

Finding the Fourth Proportional to 14,070.64, 19,418.48 and 7,782.88

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Solution

The fourth proportional to 14,070.64, 19,418.48 and 7,782.88 is: 10,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.64 : 19,418.48 = 7,782.88 : x
  2. Step 2: Convert to fraction form
    14,070.64/19,418.48 = 7,782.88/x
  3. Step 3: Cross multiply
    14,070.64x = 19,418.48 × 7,782.88
  4. Step 4: Simplify right side
    14,070.64x = 151,131,699.62
  5. Step 5: Solve for x
    x = 151,131,699.62/14,070.64
  6. Step 6: Final answer
    x = 10,740.93

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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.