Home / 11,579.07-15,979.74-6,543.51

Finding the Fourth Proportional to 11,579.07, 15,979.74 and 6,543.51

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Solution

The fourth proportional to 11,579.07, 15,979.74 and 6,543.51 is: 9,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.07 : 15,979.74 = 6,543.51 : x
  2. Step 2: Convert to fraction form
    11,579.07/15,979.74 = 6,543.51/x
  3. Step 3: Cross multiply
    11,579.07x = 15,979.74 × 6,543.51
  4. Step 4: Simplify right side
    11,579.07x = 104,563,588.49
  5. Step 5: Solve for x
    x = 104,563,588.49/11,579.07
  6. Step 6: Final answer
    x = 9,030.40

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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.