Home / 9,681.04-13,367.66-7,888.76

Finding the Fourth Proportional to 9,681.04, 13,367.66 and 7,888.76

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Solution

The fourth proportional to 9,681.04, 13,367.66 and 7,888.76 is: 10,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.04 : 13,367.66 = 7,888.76 : x
  2. Step 2: Convert to fraction form
    9,681.04/13,367.66 = 7,888.76/x
  3. Step 3: Cross multiply
    9,681.04x = 13,367.66 × 7,888.76
  4. Step 4: Simplify right side
    9,681.04x = 105,454,261.50
  5. Step 5: Solve for x
    x = 105,454,261.50/9,681.04
  6. Step 6: Final answer
    x = 10,892.86

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Half scale
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Double scale
Find fourth proportional to 9,682.04, 13,369.04 and 7,889.76
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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.