Home / 9,918.65-13,681.51-6,933.40

Finding the Fourth Proportional to 9,918.65, 13,681.51 and 6,933.40

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Solution

The fourth proportional to 9,918.65, 13,681.51 and 6,933.40 is: 9,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.65 : 13,681.51 = 6,933.40 : x
  2. Step 2: Convert to fraction form
    9,918.65/13,681.51 = 6,933.40/x
  3. Step 3: Cross multiply
    9,918.65x = 13,681.51 × 6,933.40
  4. Step 4: Simplify right side
    9,918.65x = 94,859,329.90
  5. Step 5: Solve for x
    x = 94,859,329.90/9,918.65
  6. Step 6: Final answer
    x = 9,563.73

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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.