Home / 12,389.02-18,582.81-9,060.64

Finding the Fourth Proportional to 12,389.02, 18,582.81 and 9,060.64

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Solution

The fourth proportional to 12,389.02, 18,582.81 and 9,060.64 is: 13,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.02 : 18,582.81 = 9,060.64 : x
  2. Step 2: Convert to fraction form
    12,389.02/18,582.81 = 9,060.64/x
  3. Step 3: Cross multiply
    12,389.02x = 18,582.81 × 9,060.64
  4. Step 4: Simplify right side
    12,389.02x = 168,372,151.60
  5. Step 5: Solve for x
    x = 168,372,151.60/12,389.02
  6. Step 6: Final answer
    x = 13,590.43

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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.