Home / 13,095.18-18,071.43-7,126.89

Finding the Fourth Proportional to 13,095.18, 18,071.43 and 7,126.89

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Solution

The fourth proportional to 13,095.18, 18,071.43 and 7,126.89 is: 9,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,095.18 : 18,071.43 = 7,126.89 : x
  2. Step 2: Convert to fraction form
    13,095.18/18,071.43 = 7,126.89/x
  3. Step 3: Cross multiply
    13,095.18x = 18,071.43 × 7,126.89
  4. Step 4: Simplify right side
    13,095.18x = 128,793,093.75
  5. Step 5: Solve for x
    x = 128,793,093.75/13,095.18
  6. Step 6: Final answer
    x = 9,835.15

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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.