Home / 13,393.62-18,483.93-9,145.35

Finding the Fourth Proportional to 13,393.62, 18,483.93 and 9,145.35

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Solution

The fourth proportional to 13,393.62, 18,483.93 and 9,145.35 is: 12,621.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.62 : 18,483.93 = 9,145.35 : x
  2. Step 2: Convert to fraction form
    13,393.62/18,483.93 = 9,145.35/x
  3. Step 3: Cross multiply
    13,393.62x = 18,483.93 × 9,145.35
  4. Step 4: Simplify right side
    13,393.62x = 169,042,009.23
  5. Step 5: Solve for x
    x = 169,042,009.23/13,393.62
  6. Step 6: Final answer
    x = 12,621.08

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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.