Home / 14,155.40-19,489.68-10,787.48

Finding the Fourth Proportional to 14,155.40, 19,489.68 and 10,787.48

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Solution

The fourth proportional to 14,155.40, 19,489.68 and 10,787.48 is: 14,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.40 : 19,489.68 = 10,787.48 : x
  2. Step 2: Convert to fraction form
    14,155.40/19,489.68 = 10,787.48/x
  3. Step 3: Cross multiply
    14,155.40x = 19,489.68 × 10,787.48
  4. Step 4: Simplify right side
    14,155.40x = 210,244,533.21
  5. Step 5: Solve for x
    x = 210,244,533.21/14,155.40
  6. Step 6: Final answer
    x = 14,852.60

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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.