Home / 13,134.90-18,106.05-9,346.74

Finding the Fourth Proportional to 13,134.90, 18,106.05 and 9,346.74

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Solution

The fourth proportional to 13,134.90, 18,106.05 and 9,346.74 is: 12,884.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.90 : 18,106.05 = 9,346.74 : x
  2. Step 2: Convert to fraction form
    13,134.90/18,106.05 = 9,346.74/x
  3. Step 3: Cross multiply
    13,134.90x = 18,106.05 × 9,346.74
  4. Step 4: Simplify right side
    13,134.90x = 169,232,541.78
  5. Step 5: Solve for x
    x = 169,232,541.78/13,134.90
  6. Step 6: Final answer
    x = 12,884.19

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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.