Home / 9,386.48-12,955.32-7,813.04

Finding the Fourth Proportional to 9,386.48, 12,955.32 and 7,813.04

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Solution

The fourth proportional to 9,386.48, 12,955.32 and 7,813.04 is: 10,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.48 : 12,955.32 = 7,813.04 : x
  2. Step 2: Convert to fraction form
    9,386.48/12,955.32 = 7,813.04/x
  3. Step 3: Cross multiply
    9,386.48x = 12,955.32 × 7,813.04
  4. Step 4: Simplify right side
    9,386.48x = 101,220,433.37
  5. Step 5: Solve for x
    x = 101,220,433.37/9,386.48
  6. Step 6: Final answer
    x = 10,783.64

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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.