Home / 13,066.63-18,039.42-8,603.35

Finding the Fourth Proportional to 13,066.63, 18,039.42 and 8,603.35

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Solution

The fourth proportional to 13,066.63, 18,039.42 and 8,603.35 is: 11,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.63 : 18,039.42 = 8,603.35 : x
  2. Step 2: Convert to fraction form
    13,066.63/18,039.42 = 8,603.35/x
  3. Step 3: Cross multiply
    13,066.63x = 18,039.42 × 8,603.35
  4. Step 4: Simplify right side
    13,066.63x = 155,199,444.06
  5. Step 5: Solve for x
    x = 155,199,444.06/13,066.63
  6. Step 6: Final answer
    x = 11,877.54

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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.