Home / 15,258.72-21,058.80-9,293.88

Finding the Fourth Proportional to 15,258.72, 21,058.80 and 9,293.88

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Solution

The fourth proportional to 15,258.72, 21,058.80 and 9,293.88 is: 12,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.72 : 21,058.80 = 9,293.88 : x
  2. Step 2: Convert to fraction form
    15,258.72/21,058.80 = 9,293.88/x
  3. Step 3: Cross multiply
    15,258.72x = 21,058.80 × 9,293.88
  4. Step 4: Simplify right side
    15,258.72x = 195,717,960.14
  5. Step 5: Solve for x
    x = 195,717,960.14/15,258.72
  6. Step 6: Final answer
    x = 12,826.63

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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.