Home / 13,404.60-18,492.30-9,428.40

Finding the Fourth Proportional to 13,404.60, 18,492.30 and 9,428.40

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Solution

The fourth proportional to 13,404.60, 18,492.30 and 9,428.40 is: 13,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.60 : 18,492.30 = 9,428.40 : x
  2. Step 2: Convert to fraction form
    13,404.60/18,492.30 = 9,428.40/x
  3. Step 3: Cross multiply
    13,404.60x = 18,492.30 × 9,428.40
  4. Step 4: Simplify right side
    13,404.60x = 174,352,801.32
  5. Step 5: Solve for x
    x = 174,352,801.32/13,404.60
  6. Step 6: Final answer
    x = 13,006.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.