Home / 14,070.98-19,418.46-7,783.40

Finding the Fourth Proportional to 14,070.98, 19,418.46 and 7,783.40

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Solution

The fourth proportional to 14,070.98, 19,418.46 and 7,783.40 is: 10,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.98 : 19,418.46 = 7,783.40 : x
  2. Step 2: Convert to fraction form
    14,070.98/19,418.46 = 7,783.40/x
  3. Step 3: Cross multiply
    14,070.98x = 19,418.46 × 7,783.40
  4. Step 4: Simplify right side
    14,070.98x = 151,141,641.56
  5. Step 5: Solve for x
    x = 151,141,641.56/14,070.98
  6. Step 6: Final answer
    x = 10,741.37

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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.