Home / 13,387.59-18,473.37-7,417.75

Finding the Fourth Proportional to 13,387.59, 18,473.37 and 7,417.75

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Solution

The fourth proportional to 13,387.59, 18,473.37 and 7,417.75 is: 10,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.59 : 18,473.37 = 7,417.75 : x
  2. Step 2: Convert to fraction form
    13,387.59/18,473.37 = 7,417.75/x
  3. Step 3: Cross multiply
    13,387.59x = 18,473.37 × 7,417.75
  4. Step 4: Simplify right side
    13,387.59x = 137,030,840.32
  5. Step 5: Solve for x
    x = 137,030,840.32/13,387.59
  6. Step 6: Final answer
    x = 10,235.66

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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.