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Finding the Fourth Proportional to 14,457.46, 19,948.08 and 8,406.76

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Solution

The fourth proportional to 14,457.46, 19,948.08 and 8,406.76 is: 11,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,457.46 : 19,948.08 = 8,406.76 : x
  2. Step 2: Convert to fraction form
    14,457.46/19,948.08 = 8,406.76/x
  3. Step 3: Cross multiply
    14,457.46x = 19,948.08 × 8,406.76
  4. Step 4: Simplify right side
    14,457.46x = 167,698,721.02
  5. Step 5: Solve for x
    x = 167,698,721.02/14,457.46
  6. Step 6: Final answer
    x = 11,599.46

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Double scale
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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.