Home / 15,393.34-21,232.69-10,613.49

Finding the Fourth Proportional to 15,393.34, 21,232.69 and 10,613.49

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Solution

The fourth proportional to 15,393.34, 21,232.69 and 10,613.49 is: 14,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393.34 : 21,232.69 = 10,613.49 : x
  2. Step 2: Convert to fraction form
    15,393.34/21,232.69 = 10,613.49/x
  3. Step 3: Cross multiply
    15,393.34x = 21,232.69 × 10,613.49
  4. Step 4: Simplify right side
    15,393.34x = 225,352,783.76
  5. Step 5: Solve for x
    x = 225,352,783.76/15,393.34
  6. Step 6: Final answer
    x = 14,639.63

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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.