Home / 8,036.86-12,068.70-5,421.22

Finding the Fourth Proportional to 8,036.86, 12,068.70 and 5,421.22

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Solution

The fourth proportional to 8,036.86, 12,068.70 and 5,421.22 is: 8,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.86 : 12,068.70 = 5,421.22 : x
  2. Step 2: Convert to fraction form
    8,036.86/12,068.70 = 5,421.22/x
  3. Step 3: Cross multiply
    8,036.86x = 12,068.70 × 5,421.22
  4. Step 4: Simplify right side
    8,036.86x = 65,427,077.81
  5. Step 5: Solve for x
    x = 65,427,077.81/8,036.86
  6. Step 6: Final answer
    x = 8,140.88

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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.