Home / 14,130.55-21,206.36-5,382.55

Finding the Fourth Proportional to 14,130.55, 21,206.36 and 5,382.55

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Solution

The fourth proportional to 14,130.55, 21,206.36 and 5,382.55 is: 8,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.55 : 21,206.36 = 5,382.55 : x
  2. Step 2: Convert to fraction form
    14,130.55/21,206.36 = 5,382.55/x
  3. Step 3: Cross multiply
    14,130.55x = 21,206.36 × 5,382.55
  4. Step 4: Simplify right side
    14,130.55x = 114,144,266.11
  5. Step 5: Solve for x
    x = 114,144,266.11/14,130.55
  6. Step 6: Final answer
    x = 8,077.84

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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.