Home / 11,459.34-15,813.86-6,423.56

Finding the Fourth Proportional to 11,459.34, 15,813.86 and 6,423.56

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Solution

The fourth proportional to 11,459.34, 15,813.86 and 6,423.56 is: 8,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,459.34 : 15,813.86 = 6,423.56 : x
  2. Step 2: Convert to fraction form
    11,459.34/15,813.86 = 6,423.56/x
  3. Step 3: Cross multiply
    11,459.34x = 15,813.86 × 6,423.56
  4. Step 4: Simplify right side
    11,459.34x = 101,581,296.49
  5. Step 5: Solve for x
    x = 101,581,296.49/11,459.34
  6. Step 6: Final answer
    x = 8,864.50

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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.