Home / 14,510.10-21,765.15-7,119.30

Finding the Fourth Proportional to 14,510.10, 21,765.15 and 7,119.30

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Solution

The fourth proportional to 14,510.10, 21,765.15 and 7,119.30 is: 10,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,510.10 : 21,765.15 = 7,119.30 : x
  2. Step 2: Convert to fraction form
    14,510.10/21,765.15 = 7,119.30/x
  3. Step 3: Cross multiply
    14,510.10x = 21,765.15 × 7,119.30
  4. Step 4: Simplify right side
    14,510.10x = 154,952,632.40
  5. Step 5: Solve for x
    x = 154,952,632.40/14,510.10
  6. Step 6: Final answer
    x = 10,678.95

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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.