Home / 13,031.08-19,501.20-10,663.72

Finding the Fourth Proportional to 13,031.08, 19,501.20 and 10,663.72

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Solution

The fourth proportional to 13,031.08, 19,501.20 and 10,663.72 is: 15,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.08 : 19,501.20 = 10,663.72 : x
  2. Step 2: Convert to fraction form
    13,031.08/19,501.20 = 10,663.72/x
  3. Step 3: Cross multiply
    13,031.08x = 19,501.20 × 10,663.72
  4. Step 4: Simplify right side
    13,031.08x = 207,955,336.46
  5. Step 5: Solve for x
    x = 207,955,336.46/13,031.08
  6. Step 6: Final answer
    x = 15,958.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.