Home / 18,875.14-28,312.80-5,727.63

Finding the Fourth Proportional to 18,875.14, 28,312.80 and 5,727.63

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Solution

The fourth proportional to 18,875.14, 28,312.80 and 5,727.63 is: 8,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.14 : 28,312.80 = 5,727.63 : x
  2. Step 2: Convert to fraction form
    18,875.14/28,312.80 = 5,727.63/x
  3. Step 3: Cross multiply
    18,875.14x = 28,312.80 × 5,727.63
  4. Step 4: Simplify right side
    18,875.14x = 162,165,242.66
  5. Step 5: Solve for x
    x = 162,165,242.66/18,875.14
  6. Step 6: Final answer
    x = 8,591.47

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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.