Home / 13,527.49-18,661.13-9,051.43

Finding the Fourth Proportional to 13,527.49, 18,661.13 and 9,051.43

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Solution

The fourth proportional to 13,527.49, 18,661.13 and 9,051.43 is: 12,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.49 : 18,661.13 = 9,051.43 : x
  2. Step 2: Convert to fraction form
    13,527.49/18,661.13 = 9,051.43/x
  3. Step 3: Cross multiply
    13,527.49x = 18,661.13 × 9,051.43
  4. Step 4: Simplify right side
    13,527.49x = 168,909,820.01
  5. Step 5: Solve for x
    x = 168,909,820.01/13,527.49
  6. Step 6: Final answer
    x = 12,486.41

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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.