Home / 13,989.06-19,300.23-9,505.08

Finding the Fourth Proportional to 13,989.06, 19,300.23 and 9,505.08

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Solution

The fourth proportional to 13,989.06, 19,300.23 and 9,505.08 is: 13,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.06 : 19,300.23 = 9,505.08 : x
  2. Step 2: Convert to fraction form
    13,989.06/19,300.23 = 9,505.08/x
  3. Step 3: Cross multiply
    13,989.06x = 19,300.23 × 9,505.08
  4. Step 4: Simplify right side
    13,989.06x = 183,450,230.17
  5. Step 5: Solve for x
    x = 183,450,230.17/13,989.06
  6. Step 6: Final answer
    x = 13,113.84

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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.