Home / 13,698.48-20,547.72-8,770.44

Finding the Fourth Proportional to 13,698.48, 20,547.72 and 8,770.44

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Solution

The fourth proportional to 13,698.48, 20,547.72 and 8,770.44 is: 13,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.48 : 20,547.72 = 8,770.44 : x
  2. Step 2: Convert to fraction form
    13,698.48/20,547.72 = 8,770.44/x
  3. Step 3: Cross multiply
    13,698.48x = 20,547.72 × 8,770.44
  4. Step 4: Simplify right side
    13,698.48x = 180,212,545.40
  5. Step 5: Solve for x
    x = 180,212,545.40/13,698.48
  6. Step 6: Final answer
    x = 13,155.66

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Similar ratio
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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.