Home / 17,857.72-24,640.50-10,779.40

Finding the Fourth Proportional to 17,857.72, 24,640.50 and 10,779.40

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Solution

The fourth proportional to 17,857.72, 24,640.50 and 10,779.40 is: 14,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.72 : 24,640.50 = 10,779.40 : x
  2. Step 2: Convert to fraction form
    17,857.72/24,640.50 = 10,779.40/x
  3. Step 3: Cross multiply
    17,857.72x = 24,640.50 × 10,779.40
  4. Step 4: Simplify right side
    17,857.72x = 265,609,805.70
  5. Step 5: Solve for x
    x = 265,609,805.70/17,857.72
  6. Step 6: Final answer
    x = 14,873.67

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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.