Home / 8,688.27-13,017.81-6,953.25

Finding the Fourth Proportional to 8,688.27, 13,017.81 and 6,953.25

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Solution

The fourth proportional to 8,688.27, 13,017.81 and 6,953.25 is: 10,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.27 : 13,017.81 = 6,953.25 : x
  2. Step 2: Convert to fraction form
    8,688.27/13,017.81 = 6,953.25/x
  3. Step 3: Cross multiply
    8,688.27x = 13,017.81 × 6,953.25
  4. Step 4: Simplify right side
    8,688.27x = 90,516,087.38
  5. Step 5: Solve for x
    x = 90,516,087.38/8,688.27
  6. Step 6: Final answer
    x = 10,418.19

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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.