Home / 10,031.32-13,819.06-8,437.99

Finding the Fourth Proportional to 10,031.32, 13,819.06 and 8,437.99

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Solution

The fourth proportional to 10,031.32, 13,819.06 and 8,437.99 is: 11,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.32 : 13,819.06 = 8,437.99 : x
  2. Step 2: Convert to fraction form
    10,031.32/13,819.06 = 8,437.99/x
  3. Step 3: Cross multiply
    10,031.32x = 13,819.06 × 8,437.99
  4. Step 4: Simplify right side
    10,031.32x = 116,605,090.09
  5. Step 5: Solve for x
    x = 116,605,090.09/10,031.32
  6. Step 6: Final answer
    x = 11,624.10

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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.