Home / 14,723.34-20,318.47-8,435.74

Finding the Fourth Proportional to 14,723.34, 20,318.47 and 8,435.74

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Solution

The fourth proportional to 14,723.34, 20,318.47 and 8,435.74 is: 11,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.34 : 20,318.47 = 8,435.74 : x
  2. Step 2: Convert to fraction form
    14,723.34/20,318.47 = 8,435.74/x
  3. Step 3: Cross multiply
    14,723.34x = 20,318.47 × 8,435.74
  4. Step 4: Simplify right side
    14,723.34x = 171,401,330.12
  5. Step 5: Solve for x
    x = 171,401,330.12/14,723.34
  6. Step 6: Final answer
    x = 11,641.47

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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.