Home / 13,214.04-18,209.14-9,430.60

Finding the Fourth Proportional to 13,214.04, 18,209.14 and 9,430.60

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Solution

The fourth proportional to 13,214.04, 18,209.14 and 9,430.60 is: 12,995.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.04 : 18,209.14 = 9,430.60 : x
  2. Step 2: Convert to fraction form
    13,214.04/18,209.14 = 9,430.60/x
  3. Step 3: Cross multiply
    13,214.04x = 18,209.14 × 9,430.60
  4. Step 4: Simplify right side
    13,214.04x = 171,723,115.68
  5. Step 5: Solve for x
    x = 171,723,115.68/13,214.04
  6. Step 6: Final answer
    x = 12,995.50

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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.