Home / 13,426.10-20,139.65-4,066.88

Finding the Fourth Proportional to 13,426.10, 20,139.65 and 4,066.88

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Solution

The fourth proportional to 13,426.10, 20,139.65 and 4,066.88 is: 6,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.10 : 20,139.65 = 4,066.88 : x
  2. Step 2: Convert to fraction form
    13,426.10/20,139.65 = 4,066.88/x
  3. Step 3: Cross multiply
    13,426.10x = 20,139.65 × 4,066.88
  4. Step 4: Simplify right side
    13,426.10x = 81,905,547.30
  5. Step 5: Solve for x
    x = 81,905,547.30/13,426.10
  6. Step 6: Final answer
    x = 6,100.47

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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.