Home / 14,400.48-21,570.40-6,615.84

Finding the Fourth Proportional to 14,400.48, 21,570.40 and 6,615.84

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Solution

The fourth proportional to 14,400.48, 21,570.40 and 6,615.84 is: 9,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.48 : 21,570.40 = 6,615.84 : x
  2. Step 2: Convert to fraction form
    14,400.48/21,570.40 = 6,615.84/x
  3. Step 3: Cross multiply
    14,400.48x = 21,570.40 × 6,615.84
  4. Step 4: Simplify right side
    14,400.48x = 142,706,315.14
  5. Step 5: Solve for x
    x = 142,706,315.14/14,400.48
  6. Step 6: Final answer
    x = 9,909.83

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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.