Home / 14,477.40-21,691.80-7,065.90

Finding the Fourth Proportional to 14,477.40, 21,691.80 and 7,065.90

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Solution

The fourth proportional to 14,477.40, 21,691.80 and 7,065.90 is: 10,586.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.40 : 21,691.80 = 7,065.90 : x
  2. Step 2: Convert to fraction form
    14,477.40/21,691.80 = 7,065.90/x
  3. Step 3: Cross multiply
    14,477.40x = 21,691.80 × 7,065.90
  4. Step 4: Simplify right side
    14,477.40x = 153,272,089.62
  5. Step 5: Solve for x
    x = 153,272,089.62/14,477.40
  6. Step 6: Final answer
    x = 10,586.99

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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.