Home / 15,620.48-21,555.36-8,547.04

Finding the Fourth Proportional to 15,620.48, 21,555.36 and 8,547.04

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Solution

The fourth proportional to 15,620.48, 21,555.36 and 8,547.04 is: 11,794.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.48 : 21,555.36 = 8,547.04 : x
  2. Step 2: Convert to fraction form
    15,620.48/21,555.36 = 8,547.04/x
  3. Step 3: Cross multiply
    15,620.48x = 21,555.36 × 8,547.04
  4. Step 4: Simplify right side
    15,620.48x = 184,234,524.13
  5. Step 5: Solve for x
    x = 184,234,524.13/15,620.48
  6. Step 6: Final answer
    x = 11,794.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.