Home / 18,929.72-28,412.16-9,576.35

Finding the Fourth Proportional to 18,929.72, 28,412.16 and 9,576.35

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Solution

The fourth proportional to 18,929.72, 28,412.16 and 9,576.35 is: 14,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.72 : 28,412.16 = 9,576.35 : x
  2. Step 2: Convert to fraction form
    18,929.72/28,412.16 = 9,576.35/x
  3. Step 3: Cross multiply
    18,929.72x = 28,412.16 × 9,576.35
  4. Step 4: Simplify right side
    18,929.72x = 272,084,646.36
  5. Step 5: Solve for x
    x = 272,084,646.36/18,929.72
  6. Step 6: Final answer
    x = 14,373.41

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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.