Home / 10,890.16-15,026.45-7,310.32

Finding the Fourth Proportional to 10,890.16, 15,026.45 and 7,310.32

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Solution

The fourth proportional to 10,890.16, 15,026.45 and 7,310.32 is: 10,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.16 : 15,026.45 = 7,310.32 : x
  2. Step 2: Convert to fraction form
    10,890.16/15,026.45 = 7,310.32/x
  3. Step 3: Cross multiply
    10,890.16x = 15,026.45 × 7,310.32
  4. Step 4: Simplify right side
    10,890.16x = 109,848,157.96
  5. Step 5: Solve for x
    x = 109,848,157.96/10,890.16
  6. Step 6: Final answer
    x = 10,086.92

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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.