Home / 19,705.86-29,567.43-8,615.34

Finding the Fourth Proportional to 19,705.86, 29,567.43 and 8,615.34

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Solution

The fourth proportional to 19,705.86, 29,567.43 and 8,615.34 is: 12,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.86 : 29,567.43 = 8,615.34 : x
  2. Step 2: Convert to fraction form
    19,705.86/29,567.43 = 8,615.34/x
  3. Step 3: Cross multiply
    19,705.86x = 29,567.43 × 8,615.34
  4. Step 4: Simplify right side
    19,705.86x = 254,733,462.38
  5. Step 5: Solve for x
    x = 254,733,462.38/19,705.86
  6. Step 6: Final answer
    x = 12,926.79

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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.