Home / 12,765.81-19,166.65-6,530.29

Finding the Fourth Proportional to 12,765.81, 19,166.65 and 6,530.29

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Solution

The fourth proportional to 12,765.81, 19,166.65 and 6,530.29 is: 9,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.81 : 19,166.65 = 6,530.29 : x
  2. Step 2: Convert to fraction form
    12,765.81/19,166.65 = 6,530.29/x
  3. Step 3: Cross multiply
    12,765.81x = 19,166.65 × 6,530.29
  4. Step 4: Simplify right side
    12,765.81x = 125,163,863.13
  5. Step 5: Solve for x
    x = 125,163,863.13/12,765.81
  6. Step 6: Final answer
    x = 9,804.62

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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.