Home / 13,619.02-18,795.61-9,152.07

Finding the Fourth Proportional to 13,619.02, 18,795.61 and 9,152.07

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Solution

The fourth proportional to 13,619.02, 18,795.61 and 9,152.07 is: 12,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.02 : 18,795.61 = 9,152.07 : x
  2. Step 2: Convert to fraction form
    13,619.02/18,795.61 = 9,152.07/x
  3. Step 3: Cross multiply
    13,619.02x = 18,795.61 × 9,152.07
  4. Step 4: Simplify right side
    13,619.02x = 172,018,738.41
  5. Step 5: Solve for x
    x = 172,018,738.41/13,619.02
  6. Step 6: Final answer
    x = 12,630.77

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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.