Home / 10,303.12-14,205.78-8,706.88

Finding the Fourth Proportional to 10,303.12, 14,205.78 and 8,706.88

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Solution

The fourth proportional to 10,303.12, 14,205.78 and 8,706.88 is: 12,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.12 : 14,205.78 = 8,706.88 : x
  2. Step 2: Convert to fraction form
    10,303.12/14,205.78 = 8,706.88/x
  3. Step 3: Cross multiply
    10,303.12x = 14,205.78 × 8,706.88
  4. Step 4: Simplify right side
    10,303.12x = 123,688,021.77
  5. Step 5: Solve for x
    x = 123,688,021.77/10,303.12
  6. Step 6: Final answer
    x = 12,004.91

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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.