Home / 15,371.50-21,208.91-10,256.96

Finding the Fourth Proportional to 15,371.50, 21,208.91 and 10,256.96

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Solution

The fourth proportional to 15,371.50, 21,208.91 and 10,256.96 is: 14,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.50 : 21,208.91 = 10,256.96 : x
  2. Step 2: Convert to fraction form
    15,371.50/21,208.91 = 10,256.96/x
  3. Step 3: Cross multiply
    15,371.50x = 21,208.91 × 10,256.96
  4. Step 4: Simplify right side
    15,371.50x = 217,538,941.51
  5. Step 5: Solve for x
    x = 217,538,941.51/15,371.50
  6. Step 6: Final answer
    x = 14,152.10

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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.