Home / 10,253.18-14,163.64-9,721.01

Finding the Fourth Proportional to 10,253.18, 14,163.64 and 9,721.01

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Solution

The fourth proportional to 10,253.18, 14,163.64 and 9,721.01 is: 13,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.18 : 14,163.64 = 9,721.01 : x
  2. Step 2: Convert to fraction form
    10,253.18/14,163.64 = 9,721.01/x
  3. Step 3: Cross multiply
    10,253.18x = 14,163.64 × 9,721.01
  4. Step 4: Simplify right side
    10,253.18x = 137,684,790.96
  5. Step 5: Solve for x
    x = 137,684,790.96/10,253.18
  6. Step 6: Final answer
    x = 13,428.50

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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.