Home / 15,453.44-21,320.16-10,151.12

Finding the Fourth Proportional to 15,453.44, 21,320.16 and 10,151.12

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Solution

The fourth proportional to 15,453.44, 21,320.16 and 10,151.12 is: 14,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.44 : 21,320.16 = 10,151.12 : x
  2. Step 2: Convert to fraction form
    15,453.44/21,320.16 = 10,151.12/x
  3. Step 3: Cross multiply
    15,453.44x = 21,320.16 × 10,151.12
  4. Step 4: Simplify right side
    15,453.44x = 216,423,502.58
  5. Step 5: Solve for x
    x = 216,423,502.58/15,453.44
  6. Step 6: Final answer
    x = 14,004.88

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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.