Home / 19,318.67-28,985.70-9,455.30

Finding the Fourth Proportional to 19,318.67, 28,985.70 and 9,455.30

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Solution

The fourth proportional to 19,318.67, 28,985.70 and 9,455.30 is: 14,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.67 : 28,985.70 = 9,455.30 : x
  2. Step 2: Convert to fraction form
    19,318.67/28,985.70 = 9,455.30/x
  3. Step 3: Cross multiply
    19,318.67x = 28,985.70 × 9,455.30
  4. Step 4: Simplify right side
    19,318.67x = 274,068,489.21
  5. Step 5: Solve for x
    x = 274,068,489.21/19,318.67
  6. Step 6: Final answer
    x = 14,186.72

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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.