Home / 10,909.16-15,054.22-6,667.32

Finding the Fourth Proportional to 10,909.16, 15,054.22 and 6,667.32

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Solution

The fourth proportional to 10,909.16, 15,054.22 and 6,667.32 is: 9,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.16 : 15,054.22 = 6,667.32 : x
  2. Step 2: Convert to fraction form
    10,909.16/15,054.22 = 6,667.32/x
  3. Step 3: Cross multiply
    10,909.16x = 15,054.22 × 6,667.32
  4. Step 4: Simplify right side
    10,909.16x = 100,371,302.09
  5. Step 5: Solve for x
    x = 100,371,302.09/10,909.16
  6. Step 6: Final answer
    x = 9,200.64

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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.