Home / 13,808.21-19,053.02-8,702.91

Finding the Fourth Proportional to 13,808.21, 19,053.02 and 8,702.91

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Solution

The fourth proportional to 13,808.21, 19,053.02 and 8,702.91 is: 12,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.21 : 19,053.02 = 8,702.91 : x
  2. Step 2: Convert to fraction form
    13,808.21/19,053.02 = 8,702.91/x
  3. Step 3: Cross multiply
    13,808.21x = 19,053.02 × 8,702.91
  4. Step 4: Simplify right side
    13,808.21x = 165,816,740.05
  5. Step 5: Solve for x
    x = 165,816,740.05/13,808.21
  6. Step 6: Final answer
    x = 12,008.57

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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.