Home / 10,381.68-15,563.80-7,090.16

Finding the Fourth Proportional to 10,381.68, 15,563.80 and 7,090.16

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Solution

The fourth proportional to 10,381.68, 15,563.80 and 7,090.16 is: 10,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.68 : 15,563.80 = 7,090.16 : x
  2. Step 2: Convert to fraction form
    10,381.68/15,563.80 = 7,090.16/x
  3. Step 3: Cross multiply
    10,381.68x = 15,563.80 × 7,090.16
  4. Step 4: Simplify right side
    10,381.68x = 110,349,832.21
  5. Step 5: Solve for x
    x = 110,349,832.21/10,381.68
  6. Step 6: Final answer
    x = 10,629.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.