Home / 13,011.66-19,528.43-5,621.76

Finding the Fourth Proportional to 13,011.66, 19,528.43 and 5,621.76

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Solution

The fourth proportional to 13,011.66, 19,528.43 and 5,621.76 is: 8,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.66 : 19,528.43 = 5,621.76 : x
  2. Step 2: Convert to fraction form
    13,011.66/19,528.43 = 5,621.76/x
  3. Step 3: Cross multiply
    13,011.66x = 19,528.43 × 5,621.76
  4. Step 4: Simplify right side
    13,011.66x = 109,784,118.53
  5. Step 5: Solve for x
    x = 109,784,118.53/13,011.66
  6. Step 6: Final answer
    x = 8,437.36

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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.