Home / 12,320.40-18,468.45-6,075.30

Finding the Fourth Proportional to 12,320.40, 18,468.45 and 6,075.30

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Solution

The fourth proportional to 12,320.40, 18,468.45 and 6,075.30 is: 9,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.40 : 18,468.45 = 6,075.30 : x
  2. Step 2: Convert to fraction form
    12,320.40/18,468.45 = 6,075.30/x
  3. Step 3: Cross multiply
    12,320.40x = 18,468.45 × 6,075.30
  4. Step 4: Simplify right side
    12,320.40x = 112,201,374.29
  5. Step 5: Solve for x
    x = 112,201,374.29/12,320.40
  6. Step 6: Final answer
    x = 9,106.96

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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.