Home / 10,618.12-14,651.40-6,140.98

Finding the Fourth Proportional to 10,618.12, 14,651.40 and 6,140.98

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Solution

The fourth proportional to 10,618.12, 14,651.40 and 6,140.98 is: 8,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.12 : 14,651.40 = 6,140.98 : x
  2. Step 2: Convert to fraction form
    10,618.12/14,651.40 = 6,140.98/x
  3. Step 3: Cross multiply
    10,618.12x = 14,651.40 × 6,140.98
  4. Step 4: Simplify right side
    10,618.12x = 89,973,954.37
  5. Step 5: Solve for x
    x = 89,973,954.37/10,618.12
  6. Step 6: Final answer
    x = 8,473.62

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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.