Home / 10,378.36-15,558.78-4,828.84

Finding the Fourth Proportional to 10,378.36, 15,558.78 and 4,828.84

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Solution

The fourth proportional to 10,378.36, 15,558.78 and 4,828.84 is: 7,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.36 : 15,558.78 = 4,828.84 : x
  2. Step 2: Convert to fraction form
    10,378.36/15,558.78 = 4,828.84/x
  3. Step 3: Cross multiply
    10,378.36x = 15,558.78 × 4,828.84
  4. Step 4: Simplify right side
    10,378.36x = 75,130,859.22
  5. Step 5: Solve for x
    x = 75,130,859.22/10,378.36
  6. Step 6: Final answer
    x = 7,239.18

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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.