Home / 19,000.56-28,513.80-6,688.56

Finding the Fourth Proportional to 19,000.56, 28,513.80 and 6,688.56

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Solution

The fourth proportional to 19,000.56, 28,513.80 and 6,688.56 is: 10,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.56 : 28,513.80 = 6,688.56 : x
  2. Step 2: Convert to fraction form
    19,000.56/28,513.80 = 6,688.56/x
  3. Step 3: Cross multiply
    19,000.56x = 28,513.80 × 6,688.56
  4. Step 4: Simplify right side
    19,000.56x = 190,716,262.13
  5. Step 5: Solve for x
    x = 190,716,262.13/19,000.56
  6. Step 6: Final answer
    x = 10,037.40

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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.