Home / 9,017.60-12,442.40-5,289.60

Finding the Fourth Proportional to 9,017.60, 12,442.40 and 5,289.60

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Solution

The fourth proportional to 9,017.60, 12,442.40 and 5,289.60 is: 7,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.60 : 12,442.40 = 5,289.60 : x
  2. Step 2: Convert to fraction form
    9,017.60/12,442.40 = 5,289.60/x
  3. Step 3: Cross multiply
    9,017.60x = 12,442.40 × 5,289.60
  4. Step 4: Simplify right side
    9,017.60x = 65,815,319.04
  5. Step 5: Solve for x
    x = 65,815,319.04/9,017.60
  6. Step 6: Final answer
    x = 7,298.54

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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.