Home / 8,928.60-12,323.76-5,394.24

Finding the Fourth Proportional to 8,928.60, 12,323.76 and 5,394.24

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Solution

The fourth proportional to 8,928.60, 12,323.76 and 5,394.24 is: 7,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.60 : 12,323.76 = 5,394.24 : x
  2. Step 2: Convert to fraction form
    8,928.60/12,323.76 = 5,394.24/x
  3. Step 3: Cross multiply
    8,928.60x = 12,323.76 × 5,394.24
  4. Step 4: Simplify right side
    8,928.60x = 66,477,319.14
  5. Step 5: Solve for x
    x = 66,477,319.14/8,928.60
  6. Step 6: Final answer
    x = 7,445.44

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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.