Home / 19,419.53-26,798.10-10,921.50

Finding the Fourth Proportional to 19,419.53, 26,798.10 and 10,921.50

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Solution

The fourth proportional to 19,419.53, 26,798.10 and 10,921.50 is: 15,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.53 : 26,798.10 = 10,921.50 : x
  2. Step 2: Convert to fraction form
    19,419.53/26,798.10 = 10,921.50/x
  3. Step 3: Cross multiply
    19,419.53x = 26,798.10 × 10,921.50
  4. Step 4: Simplify right side
    19,419.53x = 292,675,472.40
  5. Step 5: Solve for x
    x = 292,675,472.40/19,419.53
  6. Step 6: Final answer
    x = 15,071.19

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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.