Home / 13,315.78-19,975.59-4,082.50

Finding the Fourth Proportional to 13,315.78, 19,975.59 and 4,082.50

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Solution

The fourth proportional to 13,315.78, 19,975.59 and 4,082.50 is: 6,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.78 : 19,975.59 = 4,082.50 : x
  2. Step 2: Convert to fraction form
    13,315.78/19,975.59 = 4,082.50/x
  3. Step 3: Cross multiply
    13,315.78x = 19,975.59 × 4,082.50
  4. Step 4: Simplify right side
    13,315.78x = 81,550,346.18
  5. Step 5: Solve for x
    x = 81,550,346.18/13,315.78
  6. Step 6: Final answer
    x = 6,124.34

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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.