Home / 14,218.40-21,283.85-9,277.40

Finding the Fourth Proportional to 14,218.40, 21,283.85 and 9,277.40

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Solution

The fourth proportional to 14,218.40, 21,283.85 and 9,277.40 is: 13,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.40 : 21,283.85 = 9,277.40 : x
  2. Step 2: Convert to fraction form
    14,218.40/21,283.85 = 9,277.40/x
  3. Step 3: Cross multiply
    14,218.40x = 21,283.85 × 9,277.40
  4. Step 4: Simplify right side
    14,218.40x = 197,458,637.18
  5. Step 5: Solve for x
    x = 197,458,637.18/14,218.40
  6. Step 6: Final answer
    x = 13,887.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.