Home / 15,639.66-21,582.54-8,566.08

Finding the Fourth Proportional to 15,639.66, 21,582.54 and 8,566.08

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Solution

The fourth proportional to 15,639.66, 21,582.54 and 8,566.08 is: 11,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.66 : 21,582.54 = 8,566.08 : x
  2. Step 2: Convert to fraction form
    15,639.66/21,582.54 = 8,566.08/x
  3. Step 3: Cross multiply
    15,639.66x = 21,582.54 × 8,566.08
  4. Step 4: Simplify right side
    15,639.66x = 184,877,764.24
  5. Step 5: Solve for x
    x = 184,877,764.24/15,639.66
  6. Step 6: Final answer
    x = 11,821.09

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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.