Home / 10,316.22-14,230.80-8,905.74

Finding the Fourth Proportional to 10,316.22, 14,230.80 and 8,905.74

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Solution

The fourth proportional to 10,316.22, 14,230.80 and 8,905.74 is: 12,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.22 : 14,230.80 = 8,905.74 : x
  2. Step 2: Convert to fraction form
    10,316.22/14,230.80 = 8,905.74/x
  3. Step 3: Cross multiply
    10,316.22x = 14,230.80 × 8,905.74
  4. Step 4: Simplify right side
    10,316.22x = 126,735,804.79
  5. Step 5: Solve for x
    x = 126,735,804.79/10,316.22
  6. Step 6: Final answer
    x = 12,285.10

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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.