Home / 14,154.48-21,219.12-7,125.36

Finding the Fourth Proportional to 14,154.48, 21,219.12 and 7,125.36

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Solution

The fourth proportional to 14,154.48, 21,219.12 and 7,125.36 is: 10,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.48 : 21,219.12 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    14,154.48/21,219.12 = 7,125.36/x
  3. Step 3: Cross multiply
    14,154.48x = 21,219.12 × 7,125.36
  4. Step 4: Simplify right side
    14,154.48x = 151,193,868.88
  5. Step 5: Solve for x
    x = 151,193,868.88/14,154.48
  6. Step 6: Final answer
    x = 10,681.70

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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.