Home / 14,153.10-19,531.08-7,779.96

Finding the Fourth Proportional to 14,153.10, 19,531.08 and 7,779.96

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Solution

The fourth proportional to 14,153.10, 19,531.08 and 7,779.96 is: 10,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.10 : 19,531.08 = 7,779.96 : x
  2. Step 2: Convert to fraction form
    14,153.10/19,531.08 = 7,779.96/x
  3. Step 3: Cross multiply
    14,153.10x = 19,531.08 × 7,779.96
  4. Step 4: Simplify right side
    14,153.10x = 151,951,021.16
  5. Step 5: Solve for x
    x = 151,951,021.16/14,153.10
  6. Step 6: Final answer
    x = 10,736.24

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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.