Home / 15,613.54-21,547.19-8,539.96

Finding the Fourth Proportional to 15,613.54, 21,547.19 and 8,539.96

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Solution

The fourth proportional to 15,613.54, 21,547.19 and 8,539.96 is: 11,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.54 : 21,547.19 = 8,539.96 : x
  2. Step 2: Convert to fraction form
    15,613.54/21,547.19 = 8,539.96/x
  3. Step 3: Cross multiply
    15,613.54x = 21,547.19 × 8,539.96
  4. Step 4: Simplify right side
    15,613.54x = 184,012,032.98
  5. Step 5: Solve for x
    x = 184,012,032.98/15,613.54
  6. Step 6: Final answer
    x = 11,785.42

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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.