Home / 19,868.84-27,419.51-10,916.57

Finding the Fourth Proportional to 19,868.84, 27,419.51 and 10,916.57

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Solution

The fourth proportional to 19,868.84, 27,419.51 and 10,916.57 is: 15,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.84 : 27,419.51 = 10,916.57 : x
  2. Step 2: Convert to fraction form
    19,868.84/27,419.51 = 10,916.57/x
  3. Step 3: Cross multiply
    19,868.84x = 27,419.51 × 10,916.57
  4. Step 4: Simplify right side
    19,868.84x = 299,327,000.28
  5. Step 5: Solve for x
    x = 299,327,000.28/19,868.84
  6. Step 6: Final answer
    x = 15,065.15

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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.