Home / 10,459.29-15,688.74-4,219.14

Finding the Fourth Proportional to 10,459.29, 15,688.74 and 4,219.14

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Solution

The fourth proportional to 10,459.29, 15,688.74 and 4,219.14 is: 6,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459.29 : 15,688.74 = 4,219.14 : x
  2. Step 2: Convert to fraction form
    10,459.29/15,688.74 = 4,219.14/x
  3. Step 3: Cross multiply
    10,459.29x = 15,688.74 × 4,219.14
  4. Step 4: Simplify right side
    10,459.29x = 66,192,990.48
  5. Step 5: Solve for x
    x = 66,192,990.48/10,459.29
  6. Step 6: Final answer
    x = 6,328.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.