Home / 13,254.04-18,299.64-12,130.66

Finding the Fourth Proportional to 13,254.04, 18,299.64 and 12,130.66

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Solution

The fourth proportional to 13,254.04, 18,299.64 and 12,130.66 is: 16,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.04 : 18,299.64 = 12,130.66 : x
  2. Step 2: Convert to fraction form
    13,254.04/18,299.64 = 12,130.66/x
  3. Step 3: Cross multiply
    13,254.04x = 18,299.64 × 12,130.66
  4. Step 4: Simplify right side
    13,254.04x = 221,986,710.96
  5. Step 5: Solve for x
    x = 221,986,710.96/13,254.04
  6. Step 6: Final answer
    x = 16,748.61

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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.