Home / 13,569.12-18,725.72-7,602.08

Finding the Fourth Proportional to 13,569.12, 18,725.72 and 7,602.08

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Solution

The fourth proportional to 13,569.12, 18,725.72 and 7,602.08 is: 10,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.12 : 18,725.72 = 7,602.08 : x
  2. Step 2: Convert to fraction form
    13,569.12/18,725.72 = 7,602.08/x
  3. Step 3: Cross multiply
    13,569.12x = 18,725.72 × 7,602.08
  4. Step 4: Simplify right side
    13,569.12x = 142,354,289.86
  5. Step 5: Solve for x
    x = 142,354,289.86/13,569.12
  6. Step 6: Final answer
    x = 10,491.05

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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.