Home / 13,160.08-18,160.84-7,192.08

Finding the Fourth Proportional to 13,160.08, 18,160.84 and 7,192.08

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Solution

The fourth proportional to 13,160.08, 18,160.84 and 7,192.08 is: 9,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.08 : 18,160.84 = 7,192.08 : x
  2. Step 2: Convert to fraction form
    13,160.08/18,160.84 = 7,192.08/x
  3. Step 3: Cross multiply
    13,160.08x = 18,160.84 × 7,192.08
  4. Step 4: Simplify right side
    13,160.08x = 130,614,214.15
  5. Step 5: Solve for x
    x = 130,614,214.15/13,160.08
  6. Step 6: Final answer
    x = 9,925.03

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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.