Home / 13,690.74-20,547.63-12,826.74

Finding the Fourth Proportional to 13,690.74, 20,547.63 and 12,826.74

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Solution

The fourth proportional to 13,690.74, 20,547.63 and 12,826.74 is: 19,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.74 : 20,547.63 = 12,826.74 : x
  2. Step 2: Convert to fraction form
    13,690.74/20,547.63 = 12,826.74/x
  3. Step 3: Cross multiply
    13,690.74x = 20,547.63 × 12,826.74
  4. Step 4: Simplify right side
    13,690.74x = 263,559,107.63
  5. Step 5: Solve for x
    x = 263,559,107.63/13,690.74
  6. Step 6: Final answer
    x = 19,250.90

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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.