Home / 14,975.32-20,666.88-8,603.89

Finding the Fourth Proportional to 14,975.32, 20,666.88 and 8,603.89

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Solution

The fourth proportional to 14,975.32, 20,666.88 and 8,603.89 is: 11,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.32 : 20,666.88 = 8,603.89 : x
  2. Step 2: Convert to fraction form
    14,975.32/20,666.88 = 8,603.89/x
  3. Step 3: Cross multiply
    14,975.32x = 20,666.88 × 8,603.89
  4. Step 4: Simplify right side
    14,975.32x = 177,815,562.16
  5. Step 5: Solve for x
    x = 177,815,562.16/14,975.32
  6. Step 6: Final answer
    x = 11,873.91

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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.