Home / 18,944.47-26,140.39-10,985.05

Finding the Fourth Proportional to 18,944.47, 26,140.39 and 10,985.05

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Solution

The fourth proportional to 18,944.47, 26,140.39 and 10,985.05 is: 15,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.47 : 26,140.39 = 10,985.05 : x
  2. Step 2: Convert to fraction form
    18,944.47/26,140.39 = 10,985.05/x
  3. Step 3: Cross multiply
    18,944.47x = 26,140.39 × 10,985.05
  4. Step 4: Simplify right side
    18,944.47x = 287,153,491.17
  5. Step 5: Solve for x
    x = 287,153,491.17/18,944.47
  6. Step 6: Final answer
    x = 15,157.64

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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.