Home / 12,864.03-19,319.80-7,701.63

Finding the Fourth Proportional to 12,864.03, 19,319.80 and 7,701.63

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Solution

The fourth proportional to 12,864.03, 19,319.80 and 7,701.63 is: 11,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.03 : 19,319.80 = 7,701.63 : x
  2. Step 2: Convert to fraction form
    12,864.03/19,319.80 = 7,701.63/x
  3. Step 3: Cross multiply
    12,864.03x = 19,319.80 × 7,701.63
  4. Step 4: Simplify right side
    12,864.03x = 148,793,951.27
  5. Step 5: Solve for x
    x = 148,793,951.27/12,864.03
  6. Step 6: Final answer
    x = 11,566.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.