Home / 10,913.85-15,063.08-6,437.34

Finding the Fourth Proportional to 10,913.85, 15,063.08 and 6,437.34

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Solution

The fourth proportional to 10,913.85, 15,063.08 and 6,437.34 is: 8,884.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.85 : 15,063.08 = 6,437.34 : x
  2. Step 2: Convert to fraction form
    10,913.85/15,063.08 = 6,437.34/x
  3. Step 3: Cross multiply
    10,913.85x = 15,063.08 × 6,437.34
  4. Step 4: Simplify right side
    10,913.85x = 96,966,135.22
  5. Step 5: Solve for x
    x = 96,966,135.22/10,913.85
  6. Step 6: Final answer
    x = 8,884.69

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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.