Home / 12,335.40-18,470.70-9,030.60

Finding the Fourth Proportional to 12,335.40, 18,470.70 and 9,030.60

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Solution

The fourth proportional to 12,335.40, 18,470.70 and 9,030.60 is: 13,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.40 : 18,470.70 = 9,030.60 : x
  2. Step 2: Convert to fraction form
    12,335.40/18,470.70 = 9,030.60/x
  3. Step 3: Cross multiply
    12,335.40x = 18,470.70 × 9,030.60
  4. Step 4: Simplify right side
    12,335.40x = 166,801,503.42
  5. Step 5: Solve for x
    x = 166,801,503.42/12,335.40
  6. Step 6: Final answer
    x = 13,522.18

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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.