Home / 19,002.34-28,509.66-9,140.33

Finding the Fourth Proportional to 19,002.34, 28,509.66 and 9,140.33

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Solution

The fourth proportional to 19,002.34, 28,509.66 and 9,140.33 is: 13,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.34 : 28,509.66 = 9,140.33 : x
  2. Step 2: Convert to fraction form
    19,002.34/28,509.66 = 9,140.33/x
  3. Step 3: Cross multiply
    19,002.34x = 28,509.66 × 9,140.33
  4. Step 4: Simplify right side
    19,002.34x = 260,587,654.89
  5. Step 5: Solve for x
    x = 260,587,654.89/19,002.34
  6. Step 6: Final answer
    x = 13,713.45

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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.