Home / 13,345.50-20,017.78-6,328.87

Finding the Fourth Proportional to 13,345.50, 20,017.78 and 6,328.87

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Solution

The fourth proportional to 13,345.50, 20,017.78 and 6,328.87 is: 9,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.50 : 20,017.78 = 6,328.87 : x
  2. Step 2: Convert to fraction form
    13,345.50/20,017.78 = 6,328.87/x
  3. Step 3: Cross multiply
    13,345.50x = 20,017.78 × 6,328.87
  4. Step 4: Simplify right side
    13,345.50x = 126,689,927.31
  5. Step 5: Solve for x
    x = 126,689,927.31/13,345.50
  6. Step 6: Final answer
    x = 9,493.08

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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.