Home / 10,021.47-13,835.91-6,437.88

Finding the Fourth Proportional to 10,021.47, 13,835.91 and 6,437.88

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Solution

The fourth proportional to 10,021.47, 13,835.91 and 6,437.88 is: 8,888.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.47 : 13,835.91 = 6,437.88 : x
  2. Step 2: Convert to fraction form
    10,021.47/13,835.91 = 6,437.88/x
  3. Step 3: Cross multiply
    10,021.47x = 13,835.91 × 6,437.88
  4. Step 4: Simplify right side
    10,021.47x = 89,073,928.27
  5. Step 5: Solve for x
    x = 89,073,928.27/10,021.47
  6. Step 6: Final answer
    x = 8,888.31

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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.