Home / 12,312.44-18,457.50-4,915.34

Finding the Fourth Proportional to 12,312.44, 18,457.50 and 4,915.34

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Solution

The fourth proportional to 12,312.44, 18,457.50 and 4,915.34 is: 7,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.44 : 18,457.50 = 4,915.34 : x
  2. Step 2: Convert to fraction form
    12,312.44/18,457.50 = 4,915.34/x
  3. Step 3: Cross multiply
    12,312.44x = 18,457.50 × 4,915.34
  4. Step 4: Simplify right side
    12,312.44x = 90,724,888.05
  5. Step 5: Solve for x
    x = 90,724,888.05/12,312.44
  6. Step 6: Final answer
    x = 7,368.55

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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.