Home / 13,509.40-20,259.30-6,117.40

Finding the Fourth Proportional to 13,509.40, 20,259.30 and 6,117.40

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Solution

The fourth proportional to 13,509.40, 20,259.30 and 6,117.40 is: 9,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.40 : 20,259.30 = 6,117.40 : x
  2. Step 2: Convert to fraction form
    13,509.40/20,259.30 = 6,117.40/x
  3. Step 3: Cross multiply
    13,509.40x = 20,259.30 × 6,117.40
  4. Step 4: Simplify right side
    13,509.40x = 123,934,241.82
  5. Step 5: Solve for x
    x = 123,934,241.82/13,509.40
  6. Step 6: Final answer
    x = 9,173.93

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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.