Home / 14,868.51-20,518.43-8,580.75

Finding the Fourth Proportional to 14,868.51, 20,518.43 and 8,580.75

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Solution

The fourth proportional to 14,868.51, 20,518.43 and 8,580.75 is: 11,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,868.51 : 20,518.43 = 8,580.75 : x
  2. Step 2: Convert to fraction form
    14,868.51/20,518.43 = 8,580.75/x
  3. Step 3: Cross multiply
    14,868.51x = 20,518.43 × 8,580.75
  4. Step 4: Simplify right side
    14,868.51x = 176,063,475.32
  5. Step 5: Solve for x
    x = 176,063,475.32/14,868.51
  6. Step 6: Final answer
    x = 11,841.37

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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.