Home / 9,988.07-13,783.13-5,511.76

Finding the Fourth Proportional to 9,988.07, 13,783.13 and 5,511.76

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Solution

The fourth proportional to 9,988.07, 13,783.13 and 5,511.76 is: 7,606.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.07 : 13,783.13 = 5,511.76 : x
  2. Step 2: Convert to fraction form
    9,988.07/13,783.13 = 5,511.76/x
  3. Step 3: Cross multiply
    9,988.07x = 13,783.13 × 5,511.76
  4. Step 4: Simplify right side
    9,988.07x = 75,969,242.59
  5. Step 5: Solve for x
    x = 75,969,242.59/9,988.07
  6. Step 6: Final answer
    x = 7,606.00

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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.