Home / 10,192.68-14,066.80-5,716.40

Finding the Fourth Proportional to 10,192.68, 14,066.80 and 5,716.40

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Solution

The fourth proportional to 10,192.68, 14,066.80 and 5,716.40 is: 7,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,192.68 : 14,066.80 = 5,716.40 : x
  2. Step 2: Convert to fraction form
    10,192.68/14,066.80 = 5,716.40/x
  3. Step 3: Cross multiply
    10,192.68x = 14,066.80 × 5,716.40
  4. Step 4: Simplify right side
    10,192.68x = 80,411,370.90
  5. Step 5: Solve for x
    x = 80,411,370.90/10,192.68
  6. Step 6: Final answer
    x = 7,889.13

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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.