Home / 8,036.80-12,068.58-5,421.14

Finding the Fourth Proportional to 8,036.80, 12,068.58 and 5,421.14

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Solution

The fourth proportional to 8,036.80, 12,068.58 and 5,421.14 is: 8,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.80 : 12,068.58 = 5,421.14 : x
  2. Step 2: Convert to fraction form
    8,036.80/12,068.58 = 5,421.14/x
  3. Step 3: Cross multiply
    8,036.80x = 12,068.58 × 5,421.14
  4. Step 4: Simplify right side
    8,036.80x = 65,425,504.42
  5. Step 5: Solve for x
    x = 65,425,504.42/8,036.80
  6. Step 6: Final answer
    x = 8,140.74

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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.