Home / 13,552.81-20,339.20-6,437.07

Finding the Fourth Proportional to 13,552.81, 20,339.20 and 6,437.07

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Solution

The fourth proportional to 13,552.81, 20,339.20 and 6,437.07 is: 9,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.81 : 20,339.20 = 6,437.07 : x
  2. Step 2: Convert to fraction form
    13,552.81/20,339.20 = 6,437.07/x
  3. Step 3: Cross multiply
    13,552.81x = 20,339.20 × 6,437.07
  4. Step 4: Simplify right side
    13,552.81x = 130,924,838.05
  5. Step 5: Solve for x
    x = 130,924,838.05/13,552.81
  6. Step 6: Final answer
    x = 9,660.35

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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.