Home / 19,487.59-26,901.87-11,420.13

Finding the Fourth Proportional to 19,487.59, 26,901.87 and 11,420.13

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Solution

The fourth proportional to 19,487.59, 26,901.87 and 11,420.13 is: 15,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.59 : 26,901.87 = 11,420.13 : x
  2. Step 2: Convert to fraction form
    19,487.59/26,901.87 = 11,420.13/x
  3. Step 3: Cross multiply
    19,487.59x = 26,901.87 × 11,420.13
  4. Step 4: Simplify right side
    19,487.59x = 307,222,852.64
  5. Step 5: Solve for x
    x = 307,222,852.64/19,487.59
  6. Step 6: Final answer
    x = 15,765.05

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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.