Home / 19,916.81-27,485.13-10,964.33

Finding the Fourth Proportional to 19,916.81, 27,485.13 and 10,964.33

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Solution

The fourth proportional to 19,916.81, 27,485.13 and 10,964.33 is: 15,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.81 : 27,485.13 = 10,964.33 : x
  2. Step 2: Convert to fraction form
    19,916.81/27,485.13 = 10,964.33/x
  3. Step 3: Cross multiply
    19,916.81x = 27,485.13 × 10,964.33
  4. Step 4: Simplify right side
    19,916.81x = 301,356,035.41
  5. Step 5: Solve for x
    x = 301,356,035.41/19,916.81
  6. Step 6: Final answer
    x = 15,130.74

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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.