Home / 18,766.28-28,111.15-8,875.58

Finding the Fourth Proportional to 18,766.28, 28,111.15 and 8,875.58

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Solution

The fourth proportional to 18,766.28, 28,111.15 and 8,875.58 is: 13,295.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.28 : 28,111.15 = 8,875.58 : x
  2. Step 2: Convert to fraction form
    18,766.28/28,111.15 = 8,875.58/x
  3. Step 3: Cross multiply
    18,766.28x = 28,111.15 × 8,875.58
  4. Step 4: Simplify right side
    18,766.28x = 249,502,631.26
  5. Step 5: Solve for x
    x = 249,502,631.26/18,766.28
  6. Step 6: Final answer
    x = 13,295.26

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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.