Home / 13,087.53-18,051.12-8,303.35

Finding the Fourth Proportional to 13,087.53, 18,051.12 and 8,303.35

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Solution

The fourth proportional to 13,087.53, 18,051.12 and 8,303.35 is: 11,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.53 : 18,051.12 = 8,303.35 : x
  2. Step 2: Convert to fraction form
    13,087.53/18,051.12 = 8,303.35/x
  3. Step 3: Cross multiply
    13,087.53x = 18,051.12 × 8,303.35
  4. Step 4: Simplify right side
    13,087.53x = 149,884,767.25
  5. Step 5: Solve for x
    x = 149,884,767.25/13,087.53
  6. Step 6: Final answer
    x = 11,452.49

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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.