Home / 13,681.02-20,521.53-3,292.77

Finding the Fourth Proportional to 13,681.02, 20,521.53 and 3,292.77

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Solution

The fourth proportional to 13,681.02, 20,521.53 and 3,292.77 is: 4,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.02 : 20,521.53 = 3,292.77 : x
  2. Step 2: Convert to fraction form
    13,681.02/20,521.53 = 3,292.77/x
  3. Step 3: Cross multiply
    13,681.02x = 20,521.53 × 3,292.77
  4. Step 4: Simplify right side
    13,681.02x = 67,572,601.38
  5. Step 5: Solve for x
    x = 67,572,601.38/13,681.02
  6. Step 6: Final answer
    x = 4,939.15

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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.