Home / 8,988.10-12,409.35-5,802.82

Finding the Fourth Proportional to 8,988.10, 12,409.35 and 5,802.82

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Solution

The fourth proportional to 8,988.10, 12,409.35 and 5,802.82 is: 8,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.10 : 12,409.35 = 5,802.82 : x
  2. Step 2: Convert to fraction form
    8,988.10/12,409.35 = 5,802.82/x
  3. Step 3: Cross multiply
    8,988.10x = 12,409.35 × 5,802.82
  4. Step 4: Simplify right side
    8,988.10x = 72,009,274.03
  5. Step 5: Solve for x
    x = 72,009,274.03/8,988.10
  6. Step 6: Final answer
    x = 8,011.63

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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.