Home / 15,763.24-21,750.81-10,103.08

Finding the Fourth Proportional to 15,763.24, 21,750.81 and 10,103.08

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Solution

The fourth proportional to 15,763.24, 21,750.81 and 10,103.08 is: 13,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.24 : 21,750.81 = 10,103.08 : x
  2. Step 2: Convert to fraction form
    15,763.24/21,750.81 = 10,103.08/x
  3. Step 3: Cross multiply
    15,763.24x = 21,750.81 × 10,103.08
  4. Step 4: Simplify right side
    15,763.24x = 219,750,173.49
  5. Step 5: Solve for x
    x = 219,750,173.49/15,763.24
  6. Step 6: Final answer
    x = 13,940.67

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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.