Home / 8,600.64-11,869-5,015.50

Finding the Fourth Proportional to 8,600.64, 11,869 and 5,015.50

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Solution

The fourth proportional to 8,600.64, 11,869 and 5,015.50 is: 6,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.64 : 11,869 = 5,015.50 : x
  2. Step 2: Convert to fraction form
    8,600.64/11,869 = 5,015.50/x
  3. Step 3: Cross multiply
    8,600.64x = 11,869 × 5,015.50
  4. Step 4: Simplify right side
    8,600.64x = 59,528,969.50
  5. Step 5: Solve for x
    x = 59,528,969.50/8,600.64
  6. Step 6: Final answer
    x = 6,921.46

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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.