Home / 9,929.78-13,703.19-5,453.63

Finding the Fourth Proportional to 9,929.78, 13,703.19 and 5,453.63

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Solution

The fourth proportional to 9,929.78, 13,703.19 and 5,453.63 is: 7,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.78 : 13,703.19 = 5,453.63 : x
  2. Step 2: Convert to fraction form
    9,929.78/13,703.19 = 5,453.63/x
  3. Step 3: Cross multiply
    9,929.78x = 13,703.19 × 5,453.63
  4. Step 4: Simplify right side
    9,929.78x = 74,732,080.01
  5. Step 5: Solve for x
    x = 74,732,080.01/9,929.78
  6. Step 6: Final answer
    x = 7,526.05

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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.