Home / 8,988.78-13,477.36-4,308.68

Finding the Fourth Proportional to 8,988.78, 13,477.36 and 4,308.68

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Solution

The fourth proportional to 8,988.78, 13,477.36 and 4,308.68 is: 6,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.78 : 13,477.36 = 4,308.68 : x
  2. Step 2: Convert to fraction form
    8,988.78/13,477.36 = 4,308.68/x
  3. Step 3: Cross multiply
    8,988.78x = 13,477.36 × 4,308.68
  4. Step 4: Simplify right side
    8,988.78x = 58,069,631.48
  5. Step 5: Solve for x
    x = 58,069,631.48/8,988.78
  6. Step 6: Final answer
    x = 6,460.24

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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.