Home / 14,807.74-20,434.06-8,761.90

Finding the Fourth Proportional to 14,807.74, 20,434.06 and 8,761.90

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Solution

The fourth proportional to 14,807.74, 20,434.06 and 8,761.90 is: 12,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807.74 : 20,434.06 = 8,761.90 : x
  2. Step 2: Convert to fraction form
    14,807.74/20,434.06 = 8,761.90/x
  3. Step 3: Cross multiply
    14,807.74x = 20,434.06 × 8,761.90
  4. Step 4: Simplify right side
    14,807.74x = 179,041,190.31
  5. Step 5: Solve for x
    x = 179,041,190.31/14,807.74
  6. Step 6: Final answer
    x = 12,091.05

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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.