Home / 10,165.19-14,028.12-5,688.45

Finding the Fourth Proportional to 10,165.19, 14,028.12 and 5,688.45

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Solution

The fourth proportional to 10,165.19, 14,028.12 and 5,688.45 is: 7,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,165.19 : 14,028.12 = 5,688.45 : x
  2. Step 2: Convert to fraction form
    10,165.19/14,028.12 = 5,688.45/x
  3. Step 3: Cross multiply
    10,165.19x = 14,028.12 × 5,688.45
  4. Step 4: Simplify right side
    10,165.19x = 79,798,259.21
  5. Step 5: Solve for x
    x = 79,798,259.21/10,165.19
  6. Step 6: Final answer
    x = 7,850.15

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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.