Home / 18,818.65-25,970.09-10,320.26

Finding the Fourth Proportional to 18,818.65, 25,970.09 and 10,320.26

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Solution

The fourth proportional to 18,818.65, 25,970.09 and 10,320.26 is: 14,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.65 : 25,970.09 = 10,320.26 : x
  2. Step 2: Convert to fraction form
    18,818.65/25,970.09 = 10,320.26/x
  3. Step 3: Cross multiply
    18,818.65x = 25,970.09 × 10,320.26
  4. Step 4: Simplify right side
    18,818.65x = 268,018,081.02
  5. Step 5: Solve for x
    x = 268,018,081.02/18,818.65
  6. Step 6: Final answer
    x = 14,242.15

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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.