Home / 13,815.02-19,054.22-8,970.86

Finding the Fourth Proportional to 13,815.02, 19,054.22 and 8,970.86

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Solution

The fourth proportional to 13,815.02, 19,054.22 and 8,970.86 is: 12,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.02 : 19,054.22 = 8,970.86 : x
  2. Step 2: Convert to fraction form
    13,815.02/19,054.22 = 8,970.86/x
  3. Step 3: Cross multiply
    13,815.02x = 19,054.22 × 8,970.86
  4. Step 4: Simplify right side
    13,815.02x = 170,932,740.03
  5. Step 5: Solve for x
    x = 170,932,740.03/13,815.02
  6. Step 6: Final answer
    x = 12,372.96

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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.