Home / 11,931.28-16,461.84-7,459.59

Finding the Fourth Proportional to 11,931.28, 16,461.84 and 7,459.59

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Solution

The fourth proportional to 11,931.28, 16,461.84 and 7,459.59 is: 10,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.28 : 16,461.84 = 7,459.59 : x
  2. Step 2: Convert to fraction form
    11,931.28/16,461.84 = 7,459.59/x
  3. Step 3: Cross multiply
    11,931.28x = 16,461.84 × 7,459.59
  4. Step 4: Simplify right side
    11,931.28x = 122,798,577.05
  5. Step 5: Solve for x
    x = 122,798,577.05/11,931.28
  6. Step 6: Final answer
    x = 10,292.15

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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.