Home / 13,875.13-19,146.70-8,764.68

Finding the Fourth Proportional to 13,875.13, 19,146.70 and 8,764.68

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Solution

The fourth proportional to 13,875.13, 19,146.70 and 8,764.68 is: 12,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.13 : 19,146.70 = 8,764.68 : x
  2. Step 2: Convert to fraction form
    13,875.13/19,146.70 = 8,764.68/x
  3. Step 3: Cross multiply
    13,875.13x = 19,146.70 × 8,764.68
  4. Step 4: Simplify right side
    13,875.13x = 167,814,698.56
  5. Step 5: Solve for x
    x = 167,814,698.56/13,875.13
  6. Step 6: Final answer
    x = 12,094.64

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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.