Home / 15,513.80-21,427.08-10,232.60

Finding the Fourth Proportional to 15,513.80, 21,427.08 and 10,232.60

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Solution

The fourth proportional to 15,513.80, 21,427.08 and 10,232.60 is: 14,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.80 : 21,427.08 = 10,232.60 : x
  2. Step 2: Convert to fraction form
    15,513.80/21,427.08 = 10,232.60/x
  3. Step 3: Cross multiply
    15,513.80x = 21,427.08 × 10,232.60
  4. Step 4: Simplify right side
    15,513.80x = 219,254,738.81
  5. Step 5: Solve for x
    x = 219,254,738.81/15,513.80
  6. Step 6: Final answer
    x = 14,132.88

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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.