Home / 10,027.60-13,838.56-5,779.28

Finding the Fourth Proportional to 10,027.60, 13,838.56 and 5,779.28

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Solution

The fourth proportional to 10,027.60, 13,838.56 and 5,779.28 is: 7,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,027.60 : 13,838.56 = 5,779.28 : x
  2. Step 2: Convert to fraction form
    10,027.60/13,838.56 = 5,779.28/x
  3. Step 3: Cross multiply
    10,027.60x = 13,838.56 × 5,779.28
  4. Step 4: Simplify right side
    10,027.60x = 79,976,933.18
  5. Step 5: Solve for x
    x = 79,976,933.18/10,027.60
  6. Step 6: Final answer
    x = 7,975.68

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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.