Home / 14,253.12-21,365.10-7,220.10

Finding the Fourth Proportional to 14,253.12, 21,365.10 and 7,220.10

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Solution

The fourth proportional to 14,253.12, 21,365.10 and 7,220.10 is: 10,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.12 : 21,365.10 = 7,220.10 : x
  2. Step 2: Convert to fraction form
    14,253.12/21,365.10 = 7,220.10/x
  3. Step 3: Cross multiply
    14,253.12x = 21,365.10 × 7,220.10
  4. Step 4: Simplify right side
    14,253.12x = 154,258,158.51
  5. Step 5: Solve for x
    x = 154,258,158.51/14,253.12
  6. Step 6: Final answer
    x = 10,822.76

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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.