Home / 13,690.44-20,547.20-5,376.30

Finding the Fourth Proportional to 13,690.44, 20,547.20 and 5,376.30

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Solution

The fourth proportional to 13,690.44, 20,547.20 and 5,376.30 is: 8,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.44 : 20,547.20 = 5,376.30 : x
  2. Step 2: Convert to fraction form
    13,690.44/20,547.20 = 5,376.30/x
  3. Step 3: Cross multiply
    13,690.44x = 20,547.20 × 5,376.30
  4. Step 4: Simplify right side
    13,690.44x = 110,467,911.36
  5. Step 5: Solve for x
    x = 110,467,911.36/13,690.44
  6. Step 6: Final answer
    x = 8,068.98

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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.