Home / 10,015.52-13,820.85-5,539.01

Finding the Fourth Proportional to 10,015.52, 13,820.85 and 5,539.01

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Solution

The fourth proportional to 10,015.52, 13,820.85 and 5,539.01 is: 7,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.52 : 13,820.85 = 5,539.01 : x
  2. Step 2: Convert to fraction form
    10,015.52/13,820.85 = 5,539.01/x
  3. Step 3: Cross multiply
    10,015.52x = 13,820.85 × 5,539.01
  4. Step 4: Simplify right side
    10,015.52x = 76,553,826.36
  5. Step 5: Solve for x
    x = 76,553,826.36/10,015.52
  6. Step 6: Final answer
    x = 7,643.52

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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.