Home / 14,148.09-21,225.69-5,378.22

Finding the Fourth Proportional to 14,148.09, 21,225.69 and 5,378.22

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Solution

The fourth proportional to 14,148.09, 21,225.69 and 5,378.22 is: 8,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.09 : 21,225.69 = 5,378.22 : x
  2. Step 2: Convert to fraction form
    14,148.09/21,225.69 = 5,378.22/x
  3. Step 3: Cross multiply
    14,148.09x = 21,225.69 × 5,378.22
  4. Step 4: Simplify right side
    14,148.09x = 114,156,430.47
  5. Step 5: Solve for x
    x = 114,156,430.47/14,148.09
  6. Step 6: Final answer
    x = 8,068.68

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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.