Home / 19,421.78-26,795.14-11,460.02

Finding the Fourth Proportional to 19,421.78, 26,795.14 and 11,460.02

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Solution

The fourth proportional to 19,421.78, 26,795.14 and 11,460.02 is: 15,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.78 : 26,795.14 = 11,460.02 : x
  2. Step 2: Convert to fraction form
    19,421.78/26,795.14 = 11,460.02/x
  3. Step 3: Cross multiply
    19,421.78x = 26,795.14 × 11,460.02
  4. Step 4: Simplify right side
    19,421.78x = 307,072,677.68
  5. Step 5: Solve for x
    x = 307,072,677.68/19,421.78
  6. Step 6: Final answer
    x = 15,810.74

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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.