Home / 12,965.08-17,880.18-10,973.56

Finding the Fourth Proportional to 12,965.08, 17,880.18 and 10,973.56

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Solution

The fourth proportional to 12,965.08, 17,880.18 and 10,973.56 is: 15,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.08 : 17,880.18 = 10,973.56 : x
  2. Step 2: Convert to fraction form
    12,965.08/17,880.18 = 10,973.56/x
  3. Step 3: Cross multiply
    12,965.08x = 17,880.18 × 10,973.56
  4. Step 4: Simplify right side
    12,965.08x = 196,209,228.04
  5. Step 5: Solve for x
    x = 196,209,228.04/12,965.08
  6. Step 6: Final answer
    x = 15,133.67

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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.