Home / 13,685.08-18,883.72-7,633.90

Finding the Fourth Proportional to 13,685.08, 18,883.72 and 7,633.90

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Solution

The fourth proportional to 13,685.08, 18,883.72 and 7,633.90 is: 10,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.08 : 18,883.72 = 7,633.90 : x
  2. Step 2: Convert to fraction form
    13,685.08/18,883.72 = 7,633.90/x
  3. Step 3: Cross multiply
    13,685.08x = 18,883.72 × 7,633.90
  4. Step 4: Simplify right side
    13,685.08x = 144,156,430.11
  5. Step 5: Solve for x
    x = 144,156,430.11/13,685.08
  6. Step 6: Final answer
    x = 10,533.84

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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.