Home / 9,327.48-12,870.81-5,347.68

Finding the Fourth Proportional to 9,327.48, 12,870.81 and 5,347.68

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Solution

The fourth proportional to 9,327.48, 12,870.81 and 5,347.68 is: 7,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.48 : 12,870.81 = 5,347.68 : x
  2. Step 2: Convert to fraction form
    9,327.48/12,870.81 = 5,347.68/x
  3. Step 3: Cross multiply
    9,327.48x = 12,870.81 × 5,347.68
  4. Step 4: Simplify right side
    9,327.48x = 68,828,973.22
  5. Step 5: Solve for x
    x = 68,828,973.22/9,327.48
  6. Step 6: Final answer
    x = 7,379.16

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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.