Home / 19,318.08-28,973.70-8,785.63

Finding the Fourth Proportional to 19,318.08, 28,973.70 and 8,785.63

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Solution

The fourth proportional to 19,318.08, 28,973.70 and 8,785.63 is: 13,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.08 : 28,973.70 = 8,785.63 : x
  2. Step 2: Convert to fraction form
    19,318.08/28,973.70 = 8,785.63/x
  3. Step 3: Cross multiply
    19,318.08x = 28,973.70 × 8,785.63
  4. Step 4: Simplify right side
    19,318.08x = 254,552,244.15
  5. Step 5: Solve for x
    x = 254,552,244.15/19,318.08
  6. Step 6: Final answer
    x = 13,176.89

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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.