Home / 19,076.96-28,628.16-8,688.80

Finding the Fourth Proportional to 19,076.96, 28,628.16 and 8,688.80

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Solution

The fourth proportional to 19,076.96, 28,628.16 and 8,688.80 is: 13,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,076.96 : 28,628.16 = 8,688.80 : x
  2. Step 2: Convert to fraction form
    19,076.96/28,628.16 = 8,688.80/x
  3. Step 3: Cross multiply
    19,076.96x = 28,628.16 × 8,688.80
  4. Step 4: Simplify right side
    19,076.96x = 248,744,356.61
  5. Step 5: Solve for x
    x = 248,744,356.61/19,076.96
  6. Step 6: Final answer
    x = 13,038.99

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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.