Home / 13,239.01-19,855.49-7,903.70

Finding the Fourth Proportional to 13,239.01, 19,855.49 and 7,903.70

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Solution

The fourth proportional to 13,239.01, 19,855.49 and 7,903.70 is: 11,853.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.01 : 19,855.49 = 7,903.70 : x
  2. Step 2: Convert to fraction form
    13,239.01/19,855.49 = 7,903.70/x
  3. Step 3: Cross multiply
    13,239.01x = 19,855.49 × 7,903.70
  4. Step 4: Simplify right side
    13,239.01x = 156,931,697.52
  5. Step 5: Solve for x
    x = 156,931,697.52/13,239.01
  6. Step 6: Final answer
    x = 11,853.74

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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.