Home / 10,975.12-15,145.76-6,259.64

Finding the Fourth Proportional to 10,975.12, 15,145.76 and 6,259.64

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Solution

The fourth proportional to 10,975.12, 15,145.76 and 6,259.64 is: 8,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.12 : 15,145.76 = 6,259.64 : x
  2. Step 2: Convert to fraction form
    10,975.12/15,145.76 = 6,259.64/x
  3. Step 3: Cross multiply
    10,975.12x = 15,145.76 × 6,259.64
  4. Step 4: Simplify right side
    10,975.12x = 94,807,005.13
  5. Step 5: Solve for x
    x = 94,807,005.13/10,975.12
  6. Step 6: Final answer
    x = 8,638.36

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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.