Home / 14,689.01-20,271.83-8,315.60

Finding the Fourth Proportional to 14,689.01, 20,271.83 and 8,315.60

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Solution

The fourth proportional to 14,689.01, 20,271.83 and 8,315.60 is: 11,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.01 : 20,271.83 = 8,315.60 : x
  2. Step 2: Convert to fraction form
    14,689.01/20,271.83 = 8,315.60/x
  3. Step 3: Cross multiply
    14,689.01x = 20,271.83 × 8,315.60
  4. Step 4: Simplify right side
    14,689.01x = 168,572,286.61
  5. Step 5: Solve for x
    x = 168,572,286.61/14,689.01
  6. Step 6: Final answer
    x = 11,476.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.