Home / 13,094.90-18,071.42-7,126.79

Finding the Fourth Proportional to 13,094.90, 18,071.42 and 7,126.79

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Solution

The fourth proportional to 13,094.90, 18,071.42 and 7,126.79 is: 9,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.90 : 18,071.42 = 7,126.79 : x
  2. Step 2: Convert to fraction form
    13,094.90/18,071.42 = 7,126.79/x
  3. Step 3: Cross multiply
    13,094.90x = 18,071.42 × 7,126.79
  4. Step 4: Simplify right side
    13,094.90x = 128,791,215.34
  5. Step 5: Solve for x
    x = 128,791,215.34/13,094.90
  6. Step 6: Final answer
    x = 9,835.22

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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.