Home / 15,895.60-21,935.08-8,821.52

Finding the Fourth Proportional to 15,895.60, 21,935.08 and 8,821.52

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Solution

The fourth proportional to 15,895.60, 21,935.08 and 8,821.52 is: 12,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.60 : 21,935.08 = 8,821.52 : x
  2. Step 2: Convert to fraction form
    15,895.60/21,935.08 = 8,821.52/x
  3. Step 3: Cross multiply
    15,895.60x = 21,935.08 × 8,821.52
  4. Step 4: Simplify right side
    15,895.60x = 193,500,746.92
  5. Step 5: Solve for x
    x = 193,500,746.92/15,895.60
  6. Step 6: Final answer
    x = 12,173.23

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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.