Home / 15,362.80-21,195.12-10,060.64

Finding the Fourth Proportional to 15,362.80, 21,195.12 and 10,060.64

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Solution

The fourth proportional to 15,362.80, 21,195.12 and 10,060.64 is: 13,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.80 : 21,195.12 = 10,060.64 : x
  2. Step 2: Convert to fraction form
    15,362.80/21,195.12 = 10,060.64/x
  3. Step 3: Cross multiply
    15,362.80x = 21,195.12 × 10,060.64
  4. Step 4: Simplify right side
    15,362.80x = 213,236,472.08
  5. Step 5: Solve for x
    x = 213,236,472.08/15,362.80
  6. Step 6: Final answer
    x = 13,880.05

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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.