Home / 15,124.68-20,877.86-10,087.07

Finding the Fourth Proportional to 15,124.68, 20,877.86 and 10,087.07

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Solution

The fourth proportional to 15,124.68, 20,877.86 and 10,087.07 is: 13,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.68 : 20,877.86 = 10,087.07 : x
  2. Step 2: Convert to fraction form
    15,124.68/20,877.86 = 10,087.07/x
  3. Step 3: Cross multiply
    15,124.68x = 20,877.86 × 10,087.07
  4. Step 4: Simplify right side
    15,124.68x = 210,596,356.10
  5. Step 5: Solve for x
    x = 210,596,356.10/15,124.68
  6. Step 6: Final answer
    x = 13,924.02

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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.