Home / 13,368.24-18,447.38-7,399.55

Finding the Fourth Proportional to 13,368.24, 18,447.38 and 7,399.55

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Solution

The fourth proportional to 13,368.24, 18,447.38 and 7,399.55 is: 10,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.24 : 18,447.38 = 7,399.55 : x
  2. Step 2: Convert to fraction form
    13,368.24/18,447.38 = 7,399.55/x
  3. Step 3: Cross multiply
    13,368.24x = 18,447.38 × 7,399.55
  4. Step 4: Simplify right side
    13,368.24x = 136,502,347.55
  5. Step 5: Solve for x
    x = 136,502,347.55/13,368.24
  6. Step 6: Final answer
    x = 10,210.94

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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.