Home / 11,513.60-17,186.34-9,880.64

Finding the Fourth Proportional to 11,513.60, 17,186.34 and 9,880.64

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Solution

The fourth proportional to 11,513.60, 17,186.34 and 9,880.64 is: 14,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.60 : 17,186.34 = 9,880.64 : x
  2. Step 2: Convert to fraction form
    11,513.60/17,186.34 = 9,880.64/x
  3. Step 3: Cross multiply
    11,513.60x = 17,186.34 × 9,880.64
  4. Step 4: Simplify right side
    11,513.60x = 169,812,038.46
  5. Step 5: Solve for x
    x = 169,812,038.46/11,513.60
  6. Step 6: Final answer
    x = 14,748.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.