Home / 15,328.48-21,155.58-9,363.61

Finding the Fourth Proportional to 15,328.48, 21,155.58 and 9,363.61

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Solution

The fourth proportional to 15,328.48, 21,155.58 and 9,363.61 is: 12,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.48 : 21,155.58 = 9,363.61 : x
  2. Step 2: Convert to fraction form
    15,328.48/21,155.58 = 9,363.61/x
  3. Step 3: Cross multiply
    15,328.48x = 21,155.58 × 9,363.61
  4. Step 4: Simplify right side
    15,328.48x = 198,092,600.44
  5. Step 5: Solve for x
    x = 198,092,600.44/15,328.48
  6. Step 6: Final answer
    x = 12,923.17

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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.