Home / 13,010.40-17,953.16-7,343.64

Finding the Fourth Proportional to 13,010.40, 17,953.16 and 7,343.64

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Solution

The fourth proportional to 13,010.40, 17,953.16 and 7,343.64 is: 10,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.40 : 17,953.16 = 7,343.64 : x
  2. Step 2: Convert to fraction form
    13,010.40/17,953.16 = 7,343.64/x
  3. Step 3: Cross multiply
    13,010.40x = 17,953.16 × 7,343.64
  4. Step 4: Simplify right side
    13,010.40x = 131,841,543.90
  5. Step 5: Solve for x
    x = 131,841,543.90/13,010.40
  6. Step 6: Final answer
    x = 10,133.55

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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.