Home / 15,823.23-21,838.32-9,856.77

Finding the Fourth Proportional to 15,823.23, 21,838.32 and 9,856.77

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Solution

The fourth proportional to 15,823.23, 21,838.32 and 9,856.77 is: 13,603.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.23 : 21,838.32 = 9,856.77 : x
  2. Step 2: Convert to fraction form
    15,823.23/21,838.32 = 9,856.77/x
  3. Step 3: Cross multiply
    15,823.23x = 21,838.32 × 9,856.77
  4. Step 4: Simplify right side
    15,823.23x = 215,255,297.43
  5. Step 5: Solve for x
    x = 215,255,297.43/15,823.23
  6. Step 6: Final answer
    x = 13,603.75

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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.