Home / 14,980.13-20,657.80-11,621.71

Finding the Fourth Proportional to 14,980.13, 20,657.80 and 11,621.71

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Solution

The fourth proportional to 14,980.13, 20,657.80 and 11,621.71 is: 16,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.13 : 20,657.80 = 11,621.71 : x
  2. Step 2: Convert to fraction form
    14,980.13/20,657.80 = 11,621.71/x
  3. Step 3: Cross multiply
    14,980.13x = 20,657.80 × 11,621.71
  4. Step 4: Simplify right side
    14,980.13x = 240,078,960.84
  5. Step 5: Solve for x
    x = 240,078,960.84/14,980.13
  6. Step 6: Final answer
    x = 16,026.49

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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.