Home / 9,011.73-12,435.60-4,978.54

Finding the Fourth Proportional to 9,011.73, 12,435.60 and 4,978.54

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Solution

The fourth proportional to 9,011.73, 12,435.60 and 4,978.54 is: 6,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.73 : 12,435.60 = 4,978.54 : x
  2. Step 2: Convert to fraction form
    9,011.73/12,435.60 = 4,978.54/x
  3. Step 3: Cross multiply
    9,011.73x = 12,435.60 × 4,978.54
  4. Step 4: Simplify right side
    9,011.73x = 61,911,117.26
  5. Step 5: Solve for x
    x = 61,911,117.26/9,011.73
  6. Step 6: Final answer
    x = 6,870.06

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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.