Home / 13,011.60-19,510.76-4,240.88

Finding the Fourth Proportional to 13,011.60, 19,510.76 and 4,240.88

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Solution

The fourth proportional to 13,011.60, 19,510.76 and 4,240.88 is: 6,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.60 : 19,510.76 = 4,240.88 : x
  2. Step 2: Convert to fraction form
    13,011.60/19,510.76 = 4,240.88/x
  3. Step 3: Cross multiply
    13,011.60x = 19,510.76 × 4,240.88
  4. Step 4: Simplify right side
    13,011.60x = 82,742,791.87
  5. Step 5: Solve for x
    x = 82,742,791.87/13,011.60
  6. Step 6: Final answer
    x = 6,359.16

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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.