Home / 7,988.93-11,970.28-4,859.49

Finding the Fourth Proportional to 7,988.93, 11,970.28 and 4,859.49

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Solution

The fourth proportional to 7,988.93, 11,970.28 and 4,859.49 is: 7,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.93 : 11,970.28 = 4,859.49 : x
  2. Step 2: Convert to fraction form
    7,988.93/11,970.28 = 4,859.49/x
  3. Step 3: Cross multiply
    7,988.93x = 11,970.28 × 4,859.49
  4. Step 4: Simplify right side
    7,988.93x = 58,169,506.92
  5. Step 5: Solve for x
    x = 58,169,506.92/7,988.93
  6. Step 6: Final answer
    x = 7,281.26

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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.