Home / 15,143.04-20,892.63-10,669.25

Finding the Fourth Proportional to 15,143.04, 20,892.63 and 10,669.25

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Solution

The fourth proportional to 15,143.04, 20,892.63 and 10,669.25 is: 14,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.04 : 20,892.63 = 10,669.25 : x
  2. Step 2: Convert to fraction form
    15,143.04/20,892.63 = 10,669.25/x
  3. Step 3: Cross multiply
    15,143.04x = 20,892.63 × 10,669.25
  4. Step 4: Simplify right side
    15,143.04x = 222,908,588.16
  5. Step 5: Solve for x
    x = 222,908,588.16/15,143.04
  6. Step 6: Final answer
    x = 14,720.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.