Home / 12,356.90-18,535.35-9,076.40

Finding the Fourth Proportional to 12,356.90, 18,535.35 and 9,076.40

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Solution

The fourth proportional to 12,356.90, 18,535.35 and 9,076.40 is: 13,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.90 : 18,535.35 = 9,076.40 : x
  2. Step 2: Convert to fraction form
    12,356.90/18,535.35 = 9,076.40/x
  3. Step 3: Cross multiply
    12,356.90x = 18,535.35 × 9,076.40
  4. Step 4: Simplify right side
    12,356.90x = 168,234,250.74
  5. Step 5: Solve for x
    x = 168,234,250.74/12,356.90
  6. Step 6: Final answer
    x = 13,614.60

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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.