Home / 13,353.04-18,426.44-7,384.32

Finding the Fourth Proportional to 13,353.04, 18,426.44 and 7,384.32

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Solution

The fourth proportional to 13,353.04, 18,426.44 and 7,384.32 is: 10,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.04 : 18,426.44 = 7,384.32 : x
  2. Step 2: Convert to fraction form
    13,353.04/18,426.44 = 7,384.32/x
  3. Step 3: Cross multiply
    13,353.04x = 18,426.44 × 7,384.32
  4. Step 4: Simplify right side
    13,353.04x = 136,066,729.42
  5. Step 5: Solve for x
    x = 136,066,729.42/13,353.04
  6. Step 6: Final answer
    x = 10,189.94

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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.