Home / 10,867.96-14,998-8,480.64

Finding the Fourth Proportional to 10,867.96, 14,998 and 8,480.64

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Solution

The fourth proportional to 10,867.96, 14,998 and 8,480.64 is: 11,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.96 : 14,998 = 8,480.64 : x
  2. Step 2: Convert to fraction form
    10,867.96/14,998 = 8,480.64/x
  3. Step 3: Cross multiply
    10,867.96x = 14,998 × 8,480.64
  4. Step 4: Simplify right side
    10,867.96x = 127,192,638.72
  5. Step 5: Solve for x
    x = 127,192,638.72/10,867.96
  6. Step 6: Final answer
    x = 11,703.45

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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.