Home / 10,188.15-14,048.27-6,406.70

Finding the Fourth Proportional to 10,188.15, 14,048.27 and 6,406.70

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Solution

The fourth proportional to 10,188.15, 14,048.27 and 6,406.70 is: 8,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.15 : 14,048.27 = 6,406.70 : x
  2. Step 2: Convert to fraction form
    10,188.15/14,048.27 = 6,406.70/x
  3. Step 3: Cross multiply
    10,188.15x = 14,048.27 × 6,406.70
  4. Step 4: Simplify right side
    10,188.15x = 90,002,973.16
  5. Step 5: Solve for x
    x = 90,002,973.16/10,188.15
  6. Step 6: Final answer
    x = 8,834.09

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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.