Home / 7,019.56-9,688.41-6,459.14

Finding the Fourth Proportional to 7,019.56, 9,688.41 and 6,459.14

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Solution

The fourth proportional to 7,019.56, 9,688.41 and 6,459.14 is: 8,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.56 : 9,688.41 = 6,459.14 : x
  2. Step 2: Convert to fraction form
    7,019.56/9,688.41 = 6,459.14/x
  3. Step 3: Cross multiply
    7,019.56x = 9,688.41 × 6,459.14
  4. Step 4: Simplify right side
    7,019.56x = 62,578,820.79
  5. Step 5: Solve for x
    x = 62,578,820.79/7,019.56
  6. Step 6: Final answer
    x = 8,914.92

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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.