Home / 14,154.70-21,219.48-7,125.52

Finding the Fourth Proportional to 14,154.70, 21,219.48 and 7,125.52

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Solution

The fourth proportional to 14,154.70, 21,219.48 and 7,125.52 is: 10,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.70 : 21,219.48 = 7,125.52 : x
  2. Step 2: Convert to fraction form
    14,154.70/21,219.48 = 7,125.52/x
  3. Step 3: Cross multiply
    14,154.70x = 21,219.48 × 7,125.52
  4. Step 4: Simplify right side
    14,154.70x = 151,199,829.13
  5. Step 5: Solve for x
    x = 151,199,829.13/14,154.70
  6. Step 6: Final answer
    x = 10,681.95

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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.