Home / 18,486.07-25,510.77-10,528.30

Finding the Fourth Proportional to 18,486.07, 25,510.77 and 10,528.30

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Solution

The fourth proportional to 18,486.07, 25,510.77 and 10,528.30 is: 14,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.07 : 25,510.77 = 10,528.30 : x
  2. Step 2: Convert to fraction form
    18,486.07/25,510.77 = 10,528.30/x
  3. Step 3: Cross multiply
    18,486.07x = 25,510.77 × 10,528.30
  4. Step 4: Simplify right side
    18,486.07x = 268,585,039.79
  5. Step 5: Solve for x
    x = 268,585,039.79/18,486.07
  6. Step 6: Final answer
    x = 14,529.05

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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.