Home / 14,078.27-21,088.16-6,688.55

Finding the Fourth Proportional to 14,078.27, 21,088.16 and 6,688.55

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Solution

The fourth proportional to 14,078.27, 21,088.16 and 6,688.55 is: 10,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.27 : 21,088.16 = 6,688.55 : x
  2. Step 2: Convert to fraction form
    14,078.27/21,088.16 = 6,688.55/x
  3. Step 3: Cross multiply
    14,078.27x = 21,088.16 × 6,688.55
  4. Step 4: Simplify right side
    14,078.27x = 141,049,179.13
  5. Step 5: Solve for x
    x = 141,049,179.13/14,078.27
  6. Step 6: Final answer
    x = 10,018.93

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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.