Home / 13,308.99-18,366.46-7,340.57

Finding the Fourth Proportional to 13,308.99, 18,366.46 and 7,340.57

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Solution

The fourth proportional to 13,308.99, 18,366.46 and 7,340.57 is: 10,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.99 : 18,366.46 = 7,340.57 : x
  2. Step 2: Convert to fraction form
    13,308.99/18,366.46 = 7,340.57/x
  3. Step 3: Cross multiply
    13,308.99x = 18,366.46 × 7,340.57
  4. Step 4: Simplify right side
    13,308.99x = 134,820,312.85
  5. Step 5: Solve for x
    x = 134,820,312.85/13,308.99
  6. Step 6: Final answer
    x = 10,130.02

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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.