Home / 7,867.79-10,856.60-4,681.18

Finding the Fourth Proportional to 7,867.79, 10,856.60 and 4,681.18

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Solution

The fourth proportional to 7,867.79, 10,856.60 and 4,681.18 is: 6,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.79 : 10,856.60 = 4,681.18 : x
  2. Step 2: Convert to fraction form
    7,867.79/10,856.60 = 4,681.18/x
  3. Step 3: Cross multiply
    7,867.79x = 10,856.60 × 4,681.18
  4. Step 4: Simplify right side
    7,867.79x = 50,821,675.38
  5. Step 5: Solve for x
    x = 50,821,675.38/7,867.79
  6. Step 6: Final answer
    x = 6,459.46

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Half scale
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Double scale
Find fourth proportional to 7,868.79, 10,857.97 and 4,682.18
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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.