Home / 18,727.08-28,090.70-4,875.08

Finding the Fourth Proportional to 18,727.08, 28,090.70 and 4,875.08

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Solution

The fourth proportional to 18,727.08, 28,090.70 and 4,875.08 is: 7,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.08 : 28,090.70 = 4,875.08 : x
  2. Step 2: Convert to fraction form
    18,727.08/28,090.70 = 4,875.08/x
  3. Step 3: Cross multiply
    18,727.08x = 28,090.70 × 4,875.08
  4. Step 4: Simplify right side
    18,727.08x = 136,944,409.76
  5. Step 5: Solve for x
    x = 136,944,409.76/18,727.08
  6. Step 6: Final answer
    x = 7,312.64

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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.