Home / 19,869.17-27,418.91-10,916.64

Finding the Fourth Proportional to 19,869.17, 27,418.91 and 10,916.64

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Solution

The fourth proportional to 19,869.17, 27,418.91 and 10,916.64 is: 15,064.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.17 : 27,418.91 = 10,916.64 : x
  2. Step 2: Convert to fraction form
    19,869.17/27,418.91 = 10,916.64/x
  3. Step 3: Cross multiply
    19,869.17x = 27,418.91 × 10,916.64
  4. Step 4: Simplify right side
    19,869.17x = 299,322,315.08
  5. Step 5: Solve for x
    x = 299,322,315.08/19,869.17
  6. Step 6: Final answer
    x = 15,064.67

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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.