Home / 9,347.09-12,899.40-5,369.45

Finding the Fourth Proportional to 9,347.09, 12,899.40 and 5,369.45

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Solution

The fourth proportional to 9,347.09, 12,899.40 and 5,369.45 is: 7,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,347.09 : 12,899.40 = 5,369.45 : x
  2. Step 2: Convert to fraction form
    9,347.09/12,899.40 = 5,369.45/x
  3. Step 3: Cross multiply
    9,347.09x = 12,899.40 × 5,369.45
  4. Step 4: Simplify right side
    9,347.09x = 69,262,656.48
  5. Step 5: Solve for x
    x = 69,262,656.48/9,347.09
  6. Step 6: Final answer
    x = 7,410.08

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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.