Home / 14,085.12-21,069.28-12,802.08

Finding the Fourth Proportional to 14,085.12, 21,069.28 and 12,802.08

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Solution

The fourth proportional to 14,085.12, 21,069.28 and 12,802.08 is: 19,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.12 : 21,069.28 = 12,802.08 : x
  2. Step 2: Convert to fraction form
    14,085.12/21,069.28 = 12,802.08/x
  3. Step 3: Cross multiply
    14,085.12x = 21,069.28 × 12,802.08
  4. Step 4: Simplify right side
    14,085.12x = 269,730,608.10
  5. Step 5: Solve for x
    x = 269,730,608.10/14,085.12
  6. Step 6: Final answer
    x = 19,150.04

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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.