Home / 13,095.68-18,072.12-7,127.39

Finding the Fourth Proportional to 13,095.68, 18,072.12 and 7,127.39

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Solution

The fourth proportional to 13,095.68, 18,072.12 and 7,127.39 is: 9,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,095.68 : 18,072.12 = 7,127.39 : x
  2. Step 2: Convert to fraction form
    13,095.68/18,072.12 = 7,127.39/x
  3. Step 3: Cross multiply
    13,095.68x = 18,072.12 × 7,127.39
  4. Step 4: Simplify right side
    13,095.68x = 128,806,957.01
  5. Step 5: Solve for x
    x = 128,806,957.01/13,095.68
  6. Step 6: Final answer
    x = 9,835.84

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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.