Home / 15,244.81-21,031.25-10,772.39

Finding the Fourth Proportional to 15,244.81, 21,031.25 and 10,772.39

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Solution

The fourth proportional to 15,244.81, 21,031.25 and 10,772.39 is: 14,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.81 : 21,031.25 = 10,772.39 : x
  2. Step 2: Convert to fraction form
    15,244.81/21,031.25 = 10,772.39/x
  3. Step 3: Cross multiply
    15,244.81x = 21,031.25 × 10,772.39
  4. Step 4: Simplify right side
    15,244.81x = 226,556,825.90
  5. Step 5: Solve for x
    x = 226,556,825.90/15,244.81
  6. Step 6: Final answer
    x = 14,861.25

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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.