Home / 13,877.64-20,779.47-10,845.45

Finding the Fourth Proportional to 13,877.64, 20,779.47 and 10,845.45

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Solution

The fourth proportional to 13,877.64, 20,779.47 and 10,845.45 is: 16,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.64 : 20,779.47 = 10,845.45 : x
  2. Step 2: Convert to fraction form
    13,877.64/20,779.47 = 10,845.45/x
  3. Step 3: Cross multiply
    13,877.64x = 20,779.47 × 10,845.45
  4. Step 4: Simplify right side
    13,877.64x = 225,362,702.91
  5. Step 5: Solve for x
    x = 225,362,702.91/13,877.64
  6. Step 6: Final answer
    x = 16,239.27

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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.