Home / 7,477.12-10,316.88-5,118.40

Finding the Fourth Proportional to 7,477.12, 10,316.88 and 5,118.40

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Solution

The fourth proportional to 7,477.12, 10,316.88 and 5,118.40 is: 7,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.12 : 10,316.88 = 5,118.40 : x
  2. Step 2: Convert to fraction form
    7,477.12/10,316.88 = 5,118.40/x
  3. Step 3: Cross multiply
    7,477.12x = 10,316.88 × 5,118.40
  4. Step 4: Simplify right side
    7,477.12x = 52,805,918.59
  5. Step 5: Solve for x
    x = 52,805,918.59/7,477.12
  6. Step 6: Final answer
    x = 7,062.33

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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.