Home / 10,431.40-14,397.60-6,894.94

Finding the Fourth Proportional to 10,431.40, 14,397.60 and 6,894.94

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Solution

The fourth proportional to 10,431.40, 14,397.60 and 6,894.94 is: 9,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.40 : 14,397.60 = 6,894.94 : x
  2. Step 2: Convert to fraction form
    10,431.40/14,397.60 = 6,894.94/x
  3. Step 3: Cross multiply
    10,431.40x = 14,397.60 × 6,894.94
  4. Step 4: Simplify right side
    10,431.40x = 99,270,588.14
  5. Step 5: Solve for x
    x = 99,270,588.14/10,431.40
  6. Step 6: Final answer
    x = 9,516.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.