Home / 13,569.08-18,727.55-9,316.61

Finding the Fourth Proportional to 13,569.08, 18,727.55 and 9,316.61

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Solution

The fourth proportional to 13,569.08, 18,727.55 and 9,316.61 is: 12,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.08 : 18,727.55 = 9,316.61 : x
  2. Step 2: Convert to fraction form
    13,569.08/18,727.55 = 9,316.61/x
  3. Step 3: Cross multiply
    13,569.08x = 18,727.55 × 9,316.61
  4. Step 4: Simplify right side
    13,569.08x = 174,477,233.02
  5. Step 5: Solve for x
    x = 174,477,233.02/13,569.08
  6. Step 6: Final answer
    x = 12,858.44

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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.