Home / 14,315.54-21,480.18-7,390.04

Finding the Fourth Proportional to 14,315.54, 21,480.18 and 7,390.04

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Solution

The fourth proportional to 14,315.54, 21,480.18 and 7,390.04 is: 11,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.54 : 21,480.18 = 7,390.04 : x
  2. Step 2: Convert to fraction form
    14,315.54/21,480.18 = 7,390.04/x
  3. Step 3: Cross multiply
    14,315.54x = 21,480.18 × 7,390.04
  4. Step 4: Simplify right side
    14,315.54x = 158,739,389.41
  5. Step 5: Solve for x
    x = 158,739,389.41/14,315.54
  6. Step 6: Final answer
    x = 11,088.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.