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Finding the Fourth Proportional to 13,095.43, 18,071.88 and 7,127.11

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Solution

The fourth proportional to 13,095.43, 18,071.88 and 7,127.11 is: 9,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,095.43 : 18,071.88 = 7,127.11 : x
  2. Step 2: Convert to fraction form
    13,095.43/18,071.88 = 7,127.11/x
  3. Step 3: Cross multiply
    13,095.43x = 18,071.88 × 7,127.11
  4. Step 4: Simplify right side
    13,095.43x = 128,800,276.67
  5. Step 5: Solve for x
    x = 128,800,276.67/13,095.43
  6. Step 6: Final answer
    x = 9,835.51

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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.