Home / 14,035.28-21,018.60-9,090.08

Finding the Fourth Proportional to 14,035.28, 21,018.60 and 9,090.08

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Solution

The fourth proportional to 14,035.28, 21,018.60 and 9,090.08 is: 13,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,035.28 : 21,018.60 = 9,090.08 : x
  2. Step 2: Convert to fraction form
    14,035.28/21,018.60 = 9,090.08/x
  3. Step 3: Cross multiply
    14,035.28x = 21,018.60 × 9,090.08
  4. Step 4: Simplify right side
    14,035.28x = 191,060,755.49
  5. Step 5: Solve for x
    x = 191,060,755.49/14,035.28
  6. Step 6: Final answer
    x = 13,612.89

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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.