Home / 9,478.28-14,219.04-4,215.17

Finding the Fourth Proportional to 9,478.28, 14,219.04 and 4,215.17

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Solution

The fourth proportional to 9,478.28, 14,219.04 and 4,215.17 is: 6,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.28 : 14,219.04 = 4,215.17 : x
  2. Step 2: Convert to fraction form
    9,478.28/14,219.04 = 4,215.17/x
  3. Step 3: Cross multiply
    9,478.28x = 14,219.04 × 4,215.17
  4. Step 4: Simplify right side
    9,478.28x = 59,935,670.84
  5. Step 5: Solve for x
    x = 59,935,670.84/9,478.28
  6. Step 6: Final answer
    x = 6,323.48

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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.