Home / 15,030.64-22,519.21-12,816.91

Finding the Fourth Proportional to 15,030.64, 22,519.21 and 12,816.91

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Solution

The fourth proportional to 15,030.64, 22,519.21 and 12,816.91 is: 19,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.64 : 22,519.21 = 12,816.91 : x
  2. Step 2: Convert to fraction form
    15,030.64/22,519.21 = 12,816.91/x
  3. Step 3: Cross multiply
    15,030.64x = 22,519.21 × 12,816.91
  4. Step 4: Simplify right side
    15,030.64x = 288,626,687.84
  5. Step 5: Solve for x
    x = 288,626,687.84/15,030.64
  6. Step 6: Final answer
    x = 19,202.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.