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Finding the Fourth Proportional to 8,928.80, 13,394.04 and 5,058.08

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Solution

The fourth proportional to 8,928.80, 13,394.04 and 5,058.08 is: 7,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.80 : 13,394.04 = 5,058.08 : x
  2. Step 2: Convert to fraction form
    8,928.80/13,394.04 = 5,058.08/x
  3. Step 3: Cross multiply
    8,928.80x = 13,394.04 × 5,058.08
  4. Step 4: Simplify right side
    8,928.80x = 67,748,125.84
  5. Step 5: Solve for x
    x = 67,748,125.84/8,928.80
  6. Step 6: Final answer
    x = 7,587.60

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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.