Home / 18,750.15-25,875.09-10,366.65

Finding the Fourth Proportional to 18,750.15, 25,875.09 and 10,366.65

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Solution

The fourth proportional to 18,750.15, 25,875.09 and 10,366.65 is: 14,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.15 : 25,875.09 = 10,366.65 : x
  2. Step 2: Convert to fraction form
    18,750.15/25,875.09 = 10,366.65/x
  3. Step 3: Cross multiply
    18,750.15x = 25,875.09 × 10,366.65
  4. Step 4: Simplify right side
    18,750.15x = 268,238,001.75
  5. Step 5: Solve for x
    x = 268,238,001.75/18,750.15
  6. Step 6: Final answer
    x = 14,305.91

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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.