Home / 15,639.52-21,582.72-8,926.06

Finding the Fourth Proportional to 15,639.52, 21,582.72 and 8,926.06

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Solution

The fourth proportional to 15,639.52, 21,582.72 and 8,926.06 is: 12,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.52 : 21,582.72 = 8,926.06 : x
  2. Step 2: Convert to fraction form
    15,639.52/21,582.72 = 8,926.06/x
  3. Step 3: Cross multiply
    15,639.52x = 21,582.72 × 8,926.06
  4. Step 4: Simplify right side
    15,639.52x = 192,648,653.68
  5. Step 5: Solve for x
    x = 192,648,653.68/15,639.52
  6. Step 6: Final answer
    x = 12,318.07

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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.