Home / 18,740.08-28,118.28-8,886.32

Finding the Fourth Proportional to 18,740.08, 28,118.28 and 8,886.32

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Solution

The fourth proportional to 18,740.08, 28,118.28 and 8,886.32 is: 13,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.08 : 28,118.28 = 8,886.32 : x
  2. Step 2: Convert to fraction form
    18,740.08/28,118.28 = 8,886.32/x
  3. Step 3: Cross multiply
    18,740.08x = 28,118.28 × 8,886.32
  4. Step 4: Simplify right side
    18,740.08x = 249,868,033.93
  5. Step 5: Solve for x
    x = 249,868,033.93/18,740.08
  6. Step 6: Final answer
    x = 13,333.35

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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.