Home / 13,258.40-18,298.06-7,954.52

Finding the Fourth Proportional to 13,258.40, 18,298.06 and 7,954.52

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Solution

The fourth proportional to 13,258.40, 18,298.06 and 7,954.52 is: 10,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.40 : 18,298.06 = 7,954.52 : x
  2. Step 2: Convert to fraction form
    13,258.40/18,298.06 = 7,954.52/x
  3. Step 3: Cross multiply
    13,258.40x = 18,298.06 × 7,954.52
  4. Step 4: Simplify right side
    13,258.40x = 145,552,284.23
  5. Step 5: Solve for x
    x = 145,552,284.23/13,258.40
  6. Step 6: Final answer
    x = 10,978.12

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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.