Home / 12,898.28-19,259.14-11,555.42

Finding the Fourth Proportional to 12,898.28, 19,259.14 and 11,555.42

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Solution

The fourth proportional to 12,898.28, 19,259.14 and 11,555.42 is: 17,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.28 : 19,259.14 = 11,555.42 : x
  2. Step 2: Convert to fraction form
    12,898.28/19,259.14 = 11,555.42/x
  3. Step 3: Cross multiply
    12,898.28x = 19,259.14 × 11,555.42
  4. Step 4: Simplify right side
    12,898.28x = 222,547,355.24
  5. Step 5: Solve for x
    x = 222,547,355.24/12,898.28
  6. Step 6: Final answer
    x = 17,254.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.