Home / 9,013.80-12,438.36-4,980.36

Finding the Fourth Proportional to 9,013.80, 12,438.36 and 4,980.36

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Solution

The fourth proportional to 9,013.80, 12,438.36 and 4,980.36 is: 6,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.80 : 12,438.36 = 4,980.36 : x
  2. Step 2: Convert to fraction form
    9,013.80/12,438.36 = 4,980.36/x
  3. Step 3: Cross multiply
    9,013.80x = 12,438.36 × 4,980.36
  4. Step 4: Simplify right side
    9,013.80x = 61,947,510.61
  5. Step 5: Solve for x
    x = 61,947,510.61/9,013.80
  6. Step 6: Final answer
    x = 6,872.52

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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.