Home / 14,117.50-21,166.80-5,795.20

Finding the Fourth Proportional to 14,117.50, 21,166.80 and 5,795.20

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Solution

The fourth proportional to 14,117.50, 21,166.80 and 5,795.20 is: 8,688.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.50 : 21,166.80 = 5,795.20 : x
  2. Step 2: Convert to fraction form
    14,117.50/21,166.80 = 5,795.20/x
  3. Step 3: Cross multiply
    14,117.50x = 21,166.80 × 5,795.20
  4. Step 4: Simplify right side
    14,117.50x = 122,665,839.36
  5. Step 5: Solve for x
    x = 122,665,839.36/14,117.50
  6. Step 6: Final answer
    x = 8,688.92

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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.