Home / 11,421.25-15,756.27-6,703.40

Finding the Fourth Proportional to 11,421.25, 15,756.27 and 6,703.40

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Solution

The fourth proportional to 11,421.25, 15,756.27 and 6,703.40 is: 9,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.25 : 15,756.27 = 6,703.40 : x
  2. Step 2: Convert to fraction form
    11,421.25/15,756.27 = 6,703.40/x
  3. Step 3: Cross multiply
    11,421.25x = 15,756.27 × 6,703.40
  4. Step 4: Simplify right side
    11,421.25x = 105,620,580.32
  5. Step 5: Solve for x
    x = 105,620,580.32/11,421.25
  6. Step 6: Final answer
    x = 9,247.73

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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.