Home / 10,315.56-15,477.66-7,416.84

Finding the Fourth Proportional to 10,315.56, 15,477.66 and 7,416.84

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Solution

The fourth proportional to 10,315.56, 15,477.66 and 7,416.84 is: 11,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.56 : 15,477.66 = 7,416.84 : x
  2. Step 2: Convert to fraction form
    10,315.56/15,477.66 = 7,416.84/x
  3. Step 3: Cross multiply
    10,315.56x = 15,477.66 × 7,416.84
  4. Step 4: Simplify right side
    10,315.56x = 114,795,327.79
  5. Step 5: Solve for x
    x = 114,795,327.79/10,315.56
  6. Step 6: Final answer
    x = 11,128.37

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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.