Home / 10,521.81-15,782.63-2,624.27

Finding the Fourth Proportional to 10,521.81, 15,782.63 and 2,624.27

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Solution

The fourth proportional to 10,521.81, 15,782.63 and 2,624.27 is: 3,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.81 : 15,782.63 = 2,624.27 : x
  2. Step 2: Convert to fraction form
    10,521.81/15,782.63 = 2,624.27/x
  3. Step 3: Cross multiply
    10,521.81x = 15,782.63 × 2,624.27
  4. Step 4: Simplify right side
    10,521.81x = 41,417,790.40
  5. Step 5: Solve for x
    x = 41,417,790.40/10,521.81
  6. Step 6: Final answer
    x = 3,936.38

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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.