Home / 13,695.41-18,882.53-11,430.01

Finding the Fourth Proportional to 13,695.41, 18,882.53 and 11,430.01

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Solution

The fourth proportional to 13,695.41, 18,882.53 and 11,430.01 is: 15,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.41 : 18,882.53 = 11,430.01 : x
  2. Step 2: Convert to fraction form
    13,695.41/18,882.53 = 11,430.01/x
  3. Step 3: Cross multiply
    13,695.41x = 18,882.53 × 11,430.01
  4. Step 4: Simplify right side
    13,695.41x = 215,827,440.89
  5. Step 5: Solve for x
    x = 215,827,440.89/13,695.41
  6. Step 6: Final answer
    x = 15,759.11

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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.