Home / 10,656.28-15,984.30-4,811.32

Finding the Fourth Proportional to 10,656.28, 15,984.30 and 4,811.32

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Solution

The fourth proportional to 10,656.28, 15,984.30 and 4,811.32 is: 7,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.28 : 15,984.30 = 4,811.32 : x
  2. Step 2: Convert to fraction form
    10,656.28/15,984.30 = 4,811.32/x
  3. Step 3: Cross multiply
    10,656.28x = 15,984.30 × 4,811.32
  4. Step 4: Simplify right side
    10,656.28x = 76,905,582.28
  5. Step 5: Solve for x
    x = 76,905,582.28/10,656.28
  6. Step 6: Final answer
    x = 7,216.93

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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.