Home / 10,197.85-14,087.37-7,869.91

Finding the Fourth Proportional to 10,197.85, 14,087.37 and 7,869.91

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Solution

The fourth proportional to 10,197.85, 14,087.37 and 7,869.91 is: 10,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,197.85 : 14,087.37 = 7,869.91 : x
  2. Step 2: Convert to fraction form
    10,197.85/14,087.37 = 7,869.91/x
  3. Step 3: Cross multiply
    10,197.85x = 14,087.37 × 7,869.91
  4. Step 4: Simplify right side
    10,197.85x = 110,866,334.04
  5. Step 5: Solve for x
    x = 110,866,334.04/10,197.85
  6. Step 6: Final answer
    x = 10,871.54

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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.