Home / 15,444.08-21,312.60-8,370.32

Finding the Fourth Proportional to 15,444.08, 21,312.60 and 8,370.32

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Solution

The fourth proportional to 15,444.08, 21,312.60 and 8,370.32 is: 11,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.08 : 21,312.60 = 8,370.32 : x
  2. Step 2: Convert to fraction form
    15,444.08/21,312.60 = 8,370.32/x
  3. Step 3: Cross multiply
    15,444.08x = 21,312.60 × 8,370.32
  4. Step 4: Simplify right side
    15,444.08x = 178,393,282.03
  5. Step 5: Solve for x
    x = 178,393,282.03/15,444.08
  6. Step 6: Final answer
    x = 11,550.92

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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.