Home / 9,429.74-14,139.76-4,989.80

Finding the Fourth Proportional to 9,429.74, 14,139.76 and 4,989.80

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Solution

The fourth proportional to 9,429.74, 14,139.76 and 4,989.80 is: 7,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.74 : 14,139.76 = 4,989.80 : x
  2. Step 2: Convert to fraction form
    9,429.74/14,139.76 = 4,989.80/x
  3. Step 3: Cross multiply
    9,429.74x = 14,139.76 × 4,989.80
  4. Step 4: Simplify right side
    9,429.74x = 70,554,574.45
  5. Step 5: Solve for x
    x = 70,554,574.45/9,429.74
  6. Step 6: Final answer
    x = 7,482.13

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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.