Home / 19,168.15-28,752.32-6,688.28

Finding the Fourth Proportional to 19,168.15, 28,752.32 and 6,688.28

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Solution

The fourth proportional to 19,168.15, 28,752.32 and 6,688.28 is: 10,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.15 : 28,752.32 = 6,688.28 : x
  2. Step 2: Convert to fraction form
    19,168.15/28,752.32 = 6,688.28/x
  3. Step 3: Cross multiply
    19,168.15x = 28,752.32 × 6,688.28
  4. Step 4: Simplify right side
    19,168.15x = 192,303,566.81
  5. Step 5: Solve for x
    x = 192,303,566.81/19,168.15
  6. Step 6: Final answer
    x = 10,032.45

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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.