Home / 13,087.59-18,058.01-7,421.06

Finding the Fourth Proportional to 13,087.59, 18,058.01 and 7,421.06

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Solution

The fourth proportional to 13,087.59, 18,058.01 and 7,421.06 is: 10,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.59 : 18,058.01 = 7,421.06 : x
  2. Step 2: Convert to fraction form
    13,087.59/18,058.01 = 7,421.06/x
  3. Step 3: Cross multiply
    13,087.59x = 18,058.01 × 7,421.06
  4. Step 4: Simplify right side
    13,087.59x = 134,009,503.95
  5. Step 5: Solve for x
    x = 134,009,503.95/13,087.59
  6. Step 6: Final answer
    x = 10,239.44

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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.