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Finding the Fourth Proportional to 8,988.48, 13,484.40 and 3,064.80

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Solution

The fourth proportional to 8,988.48, 13,484.40 and 3,064.80 is: 4,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.48 : 13,484.40 = 3,064.80 : x
  2. Step 2: Convert to fraction form
    8,988.48/13,484.40 = 3,064.80/x
  3. Step 3: Cross multiply
    8,988.48x = 13,484.40 × 3,064.80
  4. Step 4: Simplify right side
    8,988.48x = 41,326,989.12
  5. Step 5: Solve for x
    x = 41,326,989.12/8,988.48
  6. Step 6: Final answer
    x = 4,597.77

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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.