Home / 18,129.28-25,020.08-10,575

Finding the Fourth Proportional to 18,129.28, 25,020.08 and 10,575

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Solution

The fourth proportional to 18,129.28, 25,020.08 and 10,575 is: 14,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.28 : 25,020.08 = 10,575 : x
  2. Step 2: Convert to fraction form
    18,129.28/25,020.08 = 10,575/x
  3. Step 3: Cross multiply
    18,129.28x = 25,020.08 × 10,575
  4. Step 4: Simplify right side
    18,129.28x = 264,587,346.00
  5. Step 5: Solve for x
    x = 264,587,346.00/18,129.28
  6. Step 6: Final answer
    x = 14,594.48

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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.