Home / 14,999.81-20,702.27-8,715.83

Finding the Fourth Proportional to 14,999.81, 20,702.27 and 8,715.83

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Solution

The fourth proportional to 14,999.81, 20,702.27 and 8,715.83 is: 12,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.81 : 20,702.27 = 8,715.83 : x
  2. Step 2: Convert to fraction form
    14,999.81/20,702.27 = 8,715.83/x
  3. Step 3: Cross multiply
    14,999.81x = 20,702.27 × 8,715.83
  4. Step 4: Simplify right side
    14,999.81x = 180,437,465.93
  5. Step 5: Solve for x
    x = 180,437,465.93/14,999.81
  6. Step 6: Final answer
    x = 12,029.32

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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.