Home / 18,627.02-25,705.73-10,129.63

Finding the Fourth Proportional to 18,627.02, 25,705.73 and 10,129.63

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Solution

The fourth proportional to 18,627.02, 25,705.73 and 10,129.63 is: 13,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.02 : 25,705.73 = 10,129.63 : x
  2. Step 2: Convert to fraction form
    18,627.02/25,705.73 = 10,129.63/x
  3. Step 3: Cross multiply
    18,627.02x = 25,705.73 × 10,129.63
  4. Step 4: Simplify right side
    18,627.02x = 260,389,533.78
  5. Step 5: Solve for x
    x = 260,389,533.78/18,627.02
  6. Step 6: Final answer
    x = 13,979.13

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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.