Home / 9,810.78-13,548.51-7,117.26

Finding the Fourth Proportional to 9,810.78, 13,548.51 and 7,117.26

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Solution

The fourth proportional to 9,810.78, 13,548.51 and 7,117.26 is: 9,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.78 : 13,548.51 = 7,117.26 : x
  2. Step 2: Convert to fraction form
    9,810.78/13,548.51 = 7,117.26/x
  3. Step 3: Cross multiply
    9,810.78x = 13,548.51 × 7,117.26
  4. Step 4: Simplify right side
    9,810.78x = 96,428,268.28
  5. Step 5: Solve for x
    x = 96,428,268.28/9,810.78
  6. Step 6: Final answer
    x = 9,828.81

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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.