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Finding the Fourth Proportional to 10,445.76, 14,326.92 and 9,880.92

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Solution

The fourth proportional to 10,445.76, 14,326.92 and 9,880.92 is: 13,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.76 : 14,326.92 = 9,880.92 : x
  2. Step 2: Convert to fraction form
    10,445.76/14,326.92 = 9,880.92/x
  3. Step 3: Cross multiply
    10,445.76x = 14,326.92 × 9,880.92
  4. Step 4: Simplify right side
    10,445.76x = 141,563,150.37
  5. Step 5: Solve for x
    x = 141,563,150.37/10,445.76
  6. Step 6: Final answer
    x = 13,552.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.