Home / 15,581.73-21,503.58-8,868.32

Finding the Fourth Proportional to 15,581.73, 21,503.58 and 8,868.32

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Solution

The fourth proportional to 15,581.73, 21,503.58 and 8,868.32 is: 12,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.73 : 21,503.58 = 8,868.32 : x
  2. Step 2: Convert to fraction form
    15,581.73/21,503.58 = 8,868.32/x
  3. Step 3: Cross multiply
    15,581.73x = 21,503.58 × 8,868.32
  4. Step 4: Simplify right side
    15,581.73x = 190,700,521.07
  5. Step 5: Solve for x
    x = 190,700,521.07/15,581.73
  6. Step 6: Final answer
    x = 12,238.73

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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.