Home / 10,887.60-16,331.40-9,656.40

Finding the Fourth Proportional to 10,887.60, 16,331.40 and 9,656.40

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Solution

The fourth proportional to 10,887.60, 16,331.40 and 9,656.40 is: 14,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.60 : 16,331.40 = 9,656.40 : x
  2. Step 2: Convert to fraction form
    10,887.60/16,331.40 = 9,656.40/x
  3. Step 3: Cross multiply
    10,887.60x = 16,331.40 × 9,656.40
  4. Step 4: Simplify right side
    10,887.60x = 157,702,530.96
  5. Step 5: Solve for x
    x = 157,702,530.96/10,887.60
  6. Step 6: Final answer
    x = 14,484.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.