Home / 13,106.43-19,564.61-12,130.82

Finding the Fourth Proportional to 13,106.43, 19,564.61 and 12,130.82

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Solution

The fourth proportional to 13,106.43, 19,564.61 and 12,130.82 is: 18,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.43 : 19,564.61 = 12,130.82 : x
  2. Step 2: Convert to fraction form
    13,106.43/19,564.61 = 12,130.82/x
  3. Step 3: Cross multiply
    13,106.43x = 19,564.61 × 12,130.82
  4. Step 4: Simplify right side
    13,106.43x = 237,334,762.28
  5. Step 5: Solve for x
    x = 237,334,762.28/13,106.43
  6. Step 6: Final answer
    x = 18,108.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.