Home / 14,160.35-19,541.77-7,787.20

Finding the Fourth Proportional to 14,160.35, 19,541.77 and 7,787.20

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Solution

The fourth proportional to 14,160.35, 19,541.77 and 7,787.20 is: 10,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.35 : 19,541.77 = 7,787.20 : x
  2. Step 2: Convert to fraction form
    14,160.35/19,541.77 = 7,787.20/x
  3. Step 3: Cross multiply
    14,160.35x = 19,541.77 × 7,787.20
  4. Step 4: Simplify right side
    14,160.35x = 152,175,632.22
  5. Step 5: Solve for x
    x = 152,175,632.22/14,160.35
  6. Step 6: Final answer
    x = 10,746.60

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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.