Home / 14,058.40-19,405.20-9,867.68

Finding the Fourth Proportional to 14,058.40, 19,405.20 and 9,867.68

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Solution

The fourth proportional to 14,058.40, 19,405.20 and 9,867.68 is: 13,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.40 : 19,405.20 = 9,867.68 : x
  2. Step 2: Convert to fraction form
    14,058.40/19,405.20 = 9,867.68/x
  3. Step 3: Cross multiply
    14,058.40x = 19,405.20 × 9,867.68
  4. Step 4: Simplify right side
    14,058.40x = 191,484,303.94
  5. Step 5: Solve for x
    x = 191,484,303.94/14,058.40
  6. Step 6: Final answer
    x = 13,620.63

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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.