Home / 19,916.90-27,484.89-10,964.06

Finding the Fourth Proportional to 19,916.90, 27,484.89 and 10,964.06

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Solution

The fourth proportional to 19,916.90, 27,484.89 and 10,964.06 is: 15,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.90 : 27,484.89 = 10,964.06 : x
  2. Step 2: Convert to fraction form
    19,916.90/27,484.89 = 10,964.06/x
  3. Step 3: Cross multiply
    19,916.90x = 27,484.89 × 10,964.06
  4. Step 4: Simplify right side
    19,916.90x = 301,345,983.05
  5. Step 5: Solve for x
    x = 301,345,983.05/19,916.90
  6. Step 6: Final answer
    x = 15,130.16

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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.