Home / 13,986.18-19,303.52-8,017.90

Finding the Fourth Proportional to 13,986.18, 19,303.52 and 8,017.90

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Solution

The fourth proportional to 13,986.18, 19,303.52 and 8,017.90 is: 11,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.18 : 19,303.52 = 8,017.90 : x
  2. Step 2: Convert to fraction form
    13,986.18/19,303.52 = 8,017.90/x
  3. Step 3: Cross multiply
    13,986.18x = 19,303.52 × 8,017.90
  4. Step 4: Simplify right side
    13,986.18x = 154,773,693.01
  5. Step 5: Solve for x
    x = 154,773,693.01/13,986.18
  6. Step 6: Final answer
    x = 11,066.19

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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.