Home / 13,699.15-20,549.45-4,340.15

Finding the Fourth Proportional to 13,699.15, 20,549.45 and 4,340.15

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Solution

The fourth proportional to 13,699.15, 20,549.45 and 4,340.15 is: 6,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.15 : 20,549.45 = 4,340.15 : x
  2. Step 2: Convert to fraction form
    13,699.15/20,549.45 = 4,340.15/x
  3. Step 3: Cross multiply
    13,699.15x = 20,549.45 × 4,340.15
  4. Step 4: Simplify right side
    13,699.15x = 89,187,695.42
  5. Step 5: Solve for x
    x = 89,187,695.42/13,699.15
  6. Step 6: Final answer
    x = 6,510.45

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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.