Home / 14,421.42-21,642.69-7,407.29

Finding the Fourth Proportional to 14,421.42, 21,642.69 and 7,407.29

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Solution

The fourth proportional to 14,421.42, 21,642.69 and 7,407.29 is: 11,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.42 : 21,642.69 = 7,407.29 : x
  2. Step 2: Convert to fraction form
    14,421.42/21,642.69 = 7,407.29/x
  3. Step 3: Cross multiply
    14,421.42x = 21,642.69 × 7,407.29
  4. Step 4: Simplify right side
    14,421.42x = 160,313,573.00
  5. Step 5: Solve for x
    x = 160,313,573.00/14,421.42
  6. Step 6: Final answer
    x = 11,116.35

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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.