Home / 13,210.60-19,787.10-10,265.80

Finding the Fourth Proportional to 13,210.60, 19,787.10 and 10,265.80

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Solution

The fourth proportional to 13,210.60, 19,787.10 and 10,265.80 is: 15,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.60 : 19,787.10 = 10,265.80 : x
  2. Step 2: Convert to fraction form
    13,210.60/19,787.10 = 10,265.80/x
  3. Step 3: Cross multiply
    13,210.60x = 19,787.10 × 10,265.80
  4. Step 4: Simplify right side
    13,210.60x = 203,130,411.18
  5. Step 5: Solve for x
    x = 203,130,411.18/13,210.60
  6. Step 6: Final answer
    x = 15,376.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.