Home / 18,887.90-26,066.59-12,503.50

Finding the Fourth Proportional to 18,887.90, 26,066.59 and 12,503.50

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Solution

The fourth proportional to 18,887.90, 26,066.59 and 12,503.50 is: 17,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.90 : 26,066.59 = 12,503.50 : x
  2. Step 2: Convert to fraction form
    18,887.90/26,066.59 = 12,503.50/x
  3. Step 3: Cross multiply
    18,887.90x = 26,066.59 × 12,503.50
  4. Step 4: Simplify right side
    18,887.90x = 325,923,511.64
  5. Step 5: Solve for x
    x = 325,923,511.64/18,887.90
  6. Step 6: Final answer
    x = 17,255.68

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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.