Home / 10,605.09-14,631.63-6,128.25

Finding the Fourth Proportional to 10,605.09, 14,631.63 and 6,128.25

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Solution

The fourth proportional to 10,605.09, 14,631.63 and 6,128.25 is: 8,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.09 : 14,631.63 = 6,128.25 : x
  2. Step 2: Convert to fraction form
    10,605.09/14,631.63 = 6,128.25/x
  3. Step 3: Cross multiply
    10,605.09x = 14,631.63 × 6,128.25
  4. Step 4: Simplify right side
    10,605.09x = 89,666,286.55
  5. Step 5: Solve for x
    x = 89,666,286.55/10,605.09
  6. Step 6: Final answer
    x = 8,455.02

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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.