Home / 14,646.34-20,211.15-8,678.56

Finding the Fourth Proportional to 14,646.34, 20,211.15 and 8,678.56

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Solution

The fourth proportional to 14,646.34, 20,211.15 and 8,678.56 is: 11,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.34 : 20,211.15 = 8,678.56 : x
  2. Step 2: Convert to fraction form
    14,646.34/20,211.15 = 8,678.56/x
  3. Step 3: Cross multiply
    14,646.34x = 20,211.15 × 8,678.56
  4. Step 4: Simplify right side
    14,646.34x = 175,403,677.94
  5. Step 5: Solve for x
    x = 175,403,677.94/14,646.34
  6. Step 6: Final answer
    x = 11,975.94

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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.