Home / 13,125.38-19,689.48-4,240.08

Finding the Fourth Proportional to 13,125.38, 19,689.48 and 4,240.08

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Solution

The fourth proportional to 13,125.38, 19,689.48 and 4,240.08 is: 6,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.38 : 19,689.48 = 4,240.08 : x
  2. Step 2: Convert to fraction form
    13,125.38/19,689.48 = 4,240.08/x
  3. Step 3: Cross multiply
    13,125.38x = 19,689.48 × 4,240.08
  4. Step 4: Simplify right side
    13,125.38x = 83,484,970.36
  5. Step 5: Solve for x
    x = 83,484,970.36/13,125.38
  6. Step 6: Final answer
    x = 6,360.58

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1.5x scale

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.